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NSN 5305-00-052-5921, 5305000525921
Cancelled -> Replaced by 5305001510882

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 000525921
Codification Country
United States
Item Name Code
INC 06657
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 5305-00-052-5921

National Stock Number (NSN) 5305-00-052-5921, or NIIN 000525921, (screw,machine) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5305001510882.

There are no manufacturer part numbers associated to this NSN.

This part number is actively being procured by the US Government, with procurement history within the last 90 days. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A625P1265. The total value of the awarded contracts has been US$ 9.85.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 44. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 06657. [AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5305000525921 contains an unknown precious metal.

This NSN is associated to Schedule B 7415338550: other copper screws (not for wood) bolts and nuts. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

COUNTERSINK ANGLE
(CRSQ) 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH
(AASB) 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.092 INCHES MINIMUM AND 0.107 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLE
(ABQZ) CROSS RECESS TYPE 1
MINIMUM TENSILE STRENGTH
(CQBC) 57000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SCREW MATERIAL
(CYAU) COPPER ALLOY
SCREW MATERIAL DOCUMENT AND CLASSIFICATION
(CYAW) QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH
(AASA) 0.212 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
THREAD CLASS
(AAJD) 2A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 20
THREAD SERIES DESIGNATOR
(THSD) UNC

Manufacturer Part Numbers


Related Inventory

MS35198-66
5305000525921
Condition FN
Desc: 1/4-20 X
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