The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-552-7422, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Insitu Pacific Pty Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-552-7422 |
| Primary Part Number | MS17830-6C316 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Insitu Pacific Pty Ltd |
| Status | ACTIVE |
| Width Across Flats | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | AST D4066 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.318 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL EXCEPT INSERT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | PLASTIC NYLON LOCKING INSERT |
| Material | STEEL COMP 316 NUT |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| MS17830-6C316 | Insitu Pacific Pty Ltd (AUS) |
| MS17830-6C316 | Insitu, Inc. (USA) |
| Reference | Meaning |
|---|---|
| MS17830-6C316 | 3/2 Design control — primary reference U.S. Government activity |
| MS17830-6C-316 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-552-7422 is a Nut,self-Locking,hexagon, manufactured by Insitu Pacific Pty Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-552-7422 has 2 manufacturer part numbers on file: MS17830-6C316 (Insitu Pacific Pty Ltd), MS17830-6C316 (Insitu, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-672-4691. Verify interchangeability with system specifications before substitution.
Key specifications for MS17830-6C316: Width Across Flats: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: AST D4066 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT. 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.