The Washer,spring Tension, cataloged under National Stock Number 5310-00-191-8167, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5310-00-191-8167 |
| Primary Part Number | 30457-2 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-7947,COND H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Material Thickness | 0.007 INCHES MINIMUM AND 0.009 INCHES MAXIMUM IN |
| Material | STEEL COMP 1095 OVERALL |
| Hole Diameter | 0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 30457-2 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
NSN 5310-00-191-8167 is a Washer,spring Tension, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-191-8167 has 1 manufacturer part number on file: 30457-2 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
1 possible match (shared part number, not a government interchangeability claim): 7690-01-616-4516. Verify interchangeability with system specifications before substitution.
Key specifications for 30457-2: Overall Height: 0.045 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-7947,COND H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN; Material Thickness: 0.007 INCHES MINIMUM AND 0.009 INCHES MAXIMUM IN. 5 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.