The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-242-3579, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-242-3579 |
| Primary Part Number | 803-2177525-M2XX-12L1 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Criticality Code Justification | ZZZW |
| Material Document and Classification | QQ-N-281 CLASS A,B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Departure From Cited Document | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Thread Class | 2B |
| Thread Quantity Per Inch | 14 |
| Material | NICKEL ALLOY R-405 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 803-2177525-M2XX-12L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 803-2177525-M3XX-12L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 0.43814UNC2BT3G400SNSA/BFL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 803-2177525-M1XX-12L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 803-2177525-M1XX-12 | 5/1 Secondary reference U.S. Government activity |
| 803-2177525-M3XX-12 | 3/1 Design control — primary reference U.S. Government activity |
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| 803-2177525-M2XX-12 | 5/1 Secondary reference U.S. Government activity |
| MIL-DTL-1222L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 0.43814UNC2BT3G400SNSA/BF | 4/1 Identification reference U.S. Government activity |
| MIL-S-1222L1 | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5310-01-242-3579 is a Nut,plain,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-242-3579 has 4 manufacturer part numbers on file: 803-2177525-M2XX-12L1 (Naval Inventory Control Point Mechanicsburg), 803-2177525-M3XX-12L1 (Naval Inventory Control Point Mechanicsburg), 0.43814UNC2BT3G400SNSA/BFL1 (Naval Inventory Control Point Mechanicsburg), 803-2177525-M1XX-12L1 (Naval Inventory Control Point Mechanicsburg).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-335-0169, 5310-01-355-7610, 5310-01-510-9496. Verify interchangeability with system specifications before substitution.
Key specifications for 803-2177525-M2XX-12L1: Thread Series: UNIFIED NATIONAL COARSE (UNC); Criticality Code Justification: ZZZW; Material Document and Classification: QQ-N-281 CLASS A,B FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 9 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.