National Stock Number (NSN) Output Data
Definition:
A NUT, FLAT ON TOP AND BOTTOM HAVING 6 FLAT SIDES. FOR ITEMS WHICH HAVE INTERNAL TAPERED OR STRAIGHT (PARALLEL) PIPE THREADS, SPECIFIC ELECTRICAL CONDUIT SIZE DESIGNATION, AND WHICH WHEN INSTALLED, PROVIDE A METHOD OF TIGHTENING TO LOCK THE CONNECTION, SEE LOCKNUT, ELECTRICAL CONDUIT. SEE ALSO LOCKNUT, TUBE FITTING. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH ACROSS THE FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH ACROSS THE FLATS IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| MIL-TDL-38999/28F | 81349 | M | 4 | 1 | E | ZZ | ||
| D38999/28-12F | 81349 | M | 2 | 2 | E | ZZ |
CAGE Information
| Code | Company |
|---|---|
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
Federal Supply Class
Title
NUTS AND WASHERS
Inclusions:
INCLUDES LOCKNUTS; EYE NUTS; PLAIN NUTS; CASTELLATED NUTS; WING NUTS; PLATE NUTS; PUSH ON NUTS; CONCAVE AND CONVEX WASHERS; FLAT WASHERS; KEYED WASHERS; LOCK WASHERS; SHOULDERED WASHERS; SPLIT WASHERS.
Exclusions:
EXCLUDES BEARING THRUST WASHERS (FSC 3120); SHIMS (FSC 5365); RING SPACERS (FSC 5365); PLATE SPACERS (FSC 5365); LOCK RINGS (FSC 5365).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CTTC | THREAD TOLERANCE CLASS | 6H INTERNAL |
| BZRR | THREAD SERIES | ISO M |
| ADEA | NUT HEIGHT | 3.17 MILLIMETERS MINIMUM AND 3.62 MILLIMETERS MAXIMUM |
| CRHC | HOLE CONFIGURATION STYLE | CONFIGURATION B |
| CQFM | HARDNESS RATING | NOT RATED |
| CRSQ | COUNTERSINK ANGLE | 118.0 DEGREES MINIMUM BOTH ENDS AND 152.0 DEGREES MAXIMUM BOTH ENDS |
| MATT | MATERIAL | ALUMINUM ALLOY OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AZKQ | TEMP RATING | NOT RATED |
| AGAV | END ITEM IDENTIFICATION | 6625-01-376-0470;TEST SET,ELECTRONIC SYSTEM |
| CRTM | BEARING SURFACE TYPE | CHAMFERED |
| CQJX | NOMINAL THREAD SIZE | 47.0 MILLIMETERS |
| ACTA | NUT STYLE | HEXAGON |
| ZZZK | SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-38999/28F GOVERNMENT SPECIFICATION |
| AGGP | DRILLED HOLE DIAMETER | 1.5 MILLIMETERS NOMINAL |
| ALET | HOLE TYPE AND QUANTITY | 3 DRILLED |
| ASDB | WIDTH ACROSS FLATS | 53.54 MILLIMETERS MINIMUM AND 55.00 MILLIMETERS MAXIMUM |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.00 |
| SFTT | SURFACE TREATMENT | NICKEL OVERALL |