The Washer,flat, cataloged under National Stock Number 5310-01-467-7586, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anillo Industries Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-467-7586 |
| Primary Part Number | HS306-231L |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anillo Industries Llc |
| Status | ACTIVE |
| Overall Diameter | 0.735 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 301 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.385 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN |
| Thickness | 0.016 INCHES NOMINAL 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 |
|---|---|
| HS306-231L | Anillo Industries Llc (USA) |
| HS306-231L | The Boeing Company (USA) |
| HS306-231L | Pac Zonamatic Inc (USA) |
| Reference | Meaning |
|---|---|
| HS306-231L | 3/2 Design control — primary reference U.S. Government activity |
| HS306-231L | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS306-231L | 5/9 Secondary reference U.S. Government activity |
| HS306 | D/9 Drawing number reference only Mcdonnell Douglas Helicopter Co Inc |
NSN 5310-01-467-7586 is a Washer,flat, manufactured by Anillo Industries Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-467-7586 has 3 manufacturer part numbers on file: HS306-231L (Anillo Industries Llc), HS306-231L (The Boeing Company), HS306-231L (Pac Zonamatic Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-467-7600. Verify interchangeability with system specifications before substitution.
Key specifications for HS306-231L: Overall Diameter: 0.735 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.