The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-283-2696, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-283-2696 |
| Primary Part Number | G1981-3-8-2 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES NUT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE CHANNEL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Quantity | 2 |
| Temp Rating | 232.0 CELSIUS MAXIMUM DEGC |
| Supplementary Features | STK LG 72.0 IN. NSN 5310-00-948-0953 IN |
| Hardness Rating | 49.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5732 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5737,UNS K66286 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5510,S32100 ASSN STD 2ND MATERIAL RESPONSE CHANNEL |
| Material Document and Classification | QQ-S-635,G10350 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-635,G10400 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-635,G10500 FED SPEC 3RD MATERIAL RESPONSE OR ASTM A29,G10420 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A29,G41300 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A29,G43400 ASSN STD 6TH MATERIAL RESPONSE OR ASTM A29,G87400 ASSN STD 7TH MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.062 INCHES MINIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Channel Height | 0.250 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 96906-MS21064 GOVERNMENT STANDARD |
| Counterbore Diameter | 0.194 INCHES MINIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.250 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE NUT |
| Surface Treatment | PASSIVATE CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 1035 OR STEEL COMP 1040 OR STEEL COMP 1050 OR STEEL COMP 1042 OR STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 8740 NUT |
| Material | IRON ALLOY 660 OR STEEL COMP 321 CHANNEL |
| Nut Spacing | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Channel Style | STRAIGHT TYPE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| G1981-3-8-2 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1035A8-2 | 5/9 Secondary reference U.S. Government activity |
| NAS689A8-2 | 5/9 Secondary reference U.S. Government activity |
| MS21064L3-8-2 | 3/2 Design control — primary reference U.S. Government activity |
| MS21064L3-8-2 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-283-2696 is a Nut Assembly,self-Locking,gang C, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-283-2696 has 1 manufacturer part number on file: G1981-3-8-2 (Howmet Global Fastening Systems Inc).
Key specifications for G1981-3-8-2: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES NUT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 28 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.