The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-506-3676, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-506-3676 |
| Primary Part Number | 803-6397262 REV B PC NO 48 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Hole Configuration Style | CONFIGURATION C |
| Material Document and Classification | ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE AND ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.116 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 316 OVERALL |
| 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 |
|---|---|
| 803-6397262 REV B PC NO 48 | Naval Sea Systems Command (USA) |
| MS17830-4C316 | Insitu, Inc. (USA) |
| Reference | Meaning |
|---|---|
| MS17830-4C316 | 4/1 Identification reference U.S. Government activity |
| NASM17830-4C316 | 5/9 Secondary reference U.S. Government activity |
| NASM17830-MS17830-4C316 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-506-3676 is a Nut,self-Locking,hexagon, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-506-3676 has 2 manufacturer part numbers on file: 803-6397262 REV B PC NO 48 (Naval Sea Systems Command), MS17830-4C316 (Insitu, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-512-6463, 5310-01-603-9437. Verify interchangeability with system specifications before substitution.
Key specifications for 803-6397262 REV B PC NO 48: Width Across Flats: 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNJC; Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF. 15 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.