The Nut,self-Locking,round, cataloged under National Stock Number 5310-00-673-8844, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-673-8844 |
| Primary Part Number | ZL2440-4-02 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Diameter | 0.353 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | EXTERNAL SURFACE SILVER |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 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 |
|---|---|
| VN2839BA02-2 | Howmet Global Fastening Systems Inc (USA) |
| ZL2440-4-02 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BNO1069-3-1 | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| VN1899DA02-2 | 5/2 Secondary reference U.S. Government activity |
| ZL2440-5-02 | 5/9 Secondary reference Harvard Industries Inc |
| 327B496P1 | 5/9 Secondary reference General Electric Company |
| 327B496P1 | 3/9 Design control — primary reference U.S. Government activity |
| 525-624-9003 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-00-673-8844 is a Nut,self-Locking,round, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-673-8844 has 3 manufacturer part numbers on file: VN2839BA02-2 (Howmet Global Fastening Systems Inc), ZL2440-4-02 (Sps Technologies, Llc Dba PB Fasteners), BNO1069-3-1 (Bristol Industries, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-024-3108. Verify interchangeability with system specifications before substitution.
Key specifications for ZL2440-4-02: Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Precious Material: SILVER; Material Document and Classification: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.