NSN 5305-01-239-3502

Part Details | MACHINE SCREW

5305-01-239-3502 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.

Alternate Parts: QQN281 CLA, QQ-N-281 CL-A, FFS92 0.25020UNC2A X 0.625LG, FF-S-92 0.250-20UNC-2A X 0.625LG, 5203381 ITEM 106, DWG 4455203381 ITEM 106, DWG 445-5203381 ITEM 106, 5305-01-239-3502, 01-239-3502, 5305012393502, 012393502

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 28, 198601-239-350206657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-01-239-3502
Part Number Cage Code Manufacturer
QQ-N-281 CL-A81348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
FF-S-92 0.250-20UNC-2A X 0.625LG81348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
5203381 ITEM 10643689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
DWG 445-5203381 ITEM 10653711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 5305-01-239-3502
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
FASTENER LENGTH0.625 INCHES NOMINAL
SCREW MATERIAL NICKEL ALLOY 400
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
INTERNAL DRIVE STYLE0 CROSS RECESS TYPE 1
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1S STYLE