Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.
CAGE Information
| Code | Company |
|---|---|
| 80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATB | WIDTH BETWEEN FLATS | 0.5313 INCHES MINIMUM AND 0.5937 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.7188 INCHES MINIMUM AND 1.7812 INCHES MAXIMUM |
| AATX | SHOULDER LENGTH | 0.2188 INCHES MINIMUM FIRST SHOULDER AND 0.2812 INCHES MAXIMUM FIRST SHOULDER |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| AGAV | END ITEM IDENTIFICATION | INTERIM ARMORED VEHICLE(IAV), CONTRACTOR LOGISTIC SUPPORT(CLS) |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.4688 INCHES MINIMUM AND 0.5312 INCHES MAXIMUM |
| CWYB | SHOULDER SHAPE | HEXAGONAL FIRST SHOULDER |
| AAVJ | SHOULDER WIDTH ACROSS FLATS | 0.5313 INCHES MINIMUM FIRST SHOULDER AND 0.5937 INCHES MAXIMUM FIRST SHOULDER |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AASU | HEAD HEIGHT | 0.2188 INCHES MINIMUM AND 0.2812 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 35 FORM |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| ASDB | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SA3-QQ-+35 ASSN STD 1ST TREATMENT RESPONSE OVERALL |
| MATT | MATERIAL | STEEL COMP 304 OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP XM-7 OVERALL |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS51576 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |