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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , MACHINE

Definition:

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.

CAGE Information

Code Company
34228 KOLLMORGEN CORPORATION DBA KOLLMORGE

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.086 INCHES
AASA THREAD LENGTH 0.250 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE SLOT
AASK HEAD STYLE FILLISTER
AASL HEAD DIAMETER 0.124 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
AASU HEAD HEIGHT 0.055 INCHES MINIMUM AND 0.062 INCHES MAXIMUM
CYBA SCREW SURFACE TREATMENT PASSIVATE
AAJF THREAD DIRECTION RIGHT-HAND
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
CMLP THREAD QUANTITY PER INCH 56
ZZZT NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 5S STYLE
CYAU SCREW MATERIAL STEEL CORROSION RESISTING
AASB FASTENER LENGTH 0.250 INCHES MAXIMUM
TEST TEST DATA DOCUMENT 81348-FFS92 SPECIFICATION
ZZZW DEPARTURE FROM CITED DOCUMENT AS MODIFIED BY MATERIAL

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