The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-942-5183, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Marshall of Cambridge Aerospace Limited. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-942-5183 |
| Primary Part Number | MS21083N14 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Marshall of Cambridge Aerospace Limited |
| Status | CANCELLED |
| Lubrication | SOLUBLE LUBRICANT |
| Width Across Flats | 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 250.0 FAHRENHEIT MAXIMUM DEGF |
| Hardness Rating | 35.0 ROCKWELL C MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.875 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.485 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL EXCEPT INSERT |
| Countersink Angle | 88.0 DEGREES MINIMUM NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | STEEL NUT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MS21083N14 | Marshall of Cambridge Aerospace Limited (GBR) |
| 201931 | Wiba Zevenaar B.v. (NLD) |
| Reference | Meaning |
|---|---|
| MS20364-1414 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| F52NTE-144 | 5/9 Secondary reference Harvard Industries Inc |
| NASM25027 | 3/1 Design control — primary reference U.S. Government activity |
| 5310009425183 | 5/9 Secondary reference E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| MS21083N14 | 5/9 Secondary reference U.S. Government activity |
| MS21083N14 | 3/2 Design control — primary reference U.S. Government activity |
| 52NTE-144 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 850135-00 | 5/9 Secondary reference Defense Reduction Agency |
| F52NTE-144 | 5/1 Secondary reference Esna, Llc |
| 6833204 | 5/1 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| F52NTE-1414 | 5/1 Secondary reference Greer Stop Nut, Inc. |
NSN 5310-00-942-5183 is a Nut,self-Locking,hexagon, manufactured by Marshall of Cambridge Aerospace Limited, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-942-5183 has 2 manufacturer part numbers on file: MS21083N14 (Marshall of Cambridge Aerospace Limited), 201931 (Wiba Zevenaar B.v.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-458-5394. Verify interchangeability with system specifications before substitution.
Key specifications for MS21083N14: Lubrication: SOLUBLE LUBRICANT; Width Across Flats: 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT. 19 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.
NSN 5310-00-942-5183 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.