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 |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 24 |
| AATN | SHOULDER DIAMETER | 0.371 INCHES MINIMUM FIRST SHOULDER AND 0.374 INCHES MAXIMUM FIRST SHOULDER |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS1298 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AAJD | THREAD CLASS | 3A |
| AATX | SHOULDER LENGTH | 0.438 INCHES MINIMUM FIRST SHOULDER AND 0.458 INCHES MAXIMUM FIRST SHOULDER |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASA | THREAD LENGTH | 0.395 INCHES MINIMUM AND 0.496 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.671 INCHES MINIMUM AND 0.709 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| AASB | FASTENER LENGTH | 0.936 INCHES MINIMUM AND 0.976 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| MATT | MATERIAL | STEEL COMP 8630 OVERALL OR STEEL COMP 4037 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| AASU | HEAD HEIGHT | 0.191 INCHES MINIMUM AND 0.215 INCHES MAXIMUM |
| AASK | HEAD STYLE | PAN |