The Washer,flat, cataloged under National Stock Number 5310-00-291-4552, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Komatsu America Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-291-4552 |
| Primary Part Number | 27340 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Komatsu America Corporation |
| Status | ACTIVE |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Hardness Rating | 80.0 DUROMETER NOMINAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | RUBBER SYNTHETIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.875 INCHES NOMINAL IN |
| Thickness | 0.250 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 |
|---|---|
| 27340 PRIMARY | Komatsu America Corporation (USA) |
| 3-36072-0721-9 PRIMARY | Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA) |
| Reference | Meaning |
|---|---|
| D27340 | 5/9 Secondary reference Komatsu America Corporation |
NSN 5310-00-291-4552 is a Washer,flat, manufactured by Komatsu America Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-291-4552 has 2 manufacturer part numbers on file: 27340 (Komatsu America Corporation), 3-36072-0721-9 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc).
4 possible matches (shared part number, not a government interchangeability claim): 4320-00-613-3160, 5320-00-999-8819, 3020-01-391-0789. Verify interchangeability with system specifications before substitution.
Key specifications for 27340: Overall Diameter: 1.250 INCHES NOMINAL IN; Hardness Rating: 80.0 DUROMETER NOMINAL; 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.