The Washer,flat, cataloged under National Stock Number 5310-00-458-8655, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-458-8655 |
| Primary Part Number | LS1588C10 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co |
| Status | ACTIVE |
| Overall Diameter | 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED |
| Material Document and Classification | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.062 INCHES MINIMUM AND 1.082 INCHES MAXIMUM IN |
| Thickness | 0.060 INCHES MINIMUM AND 0.068 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 |
|---|---|
| LS1588C10 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| LS1588C10 | Fabrication Specialty Inc Dba Fabrication Specialty Inc (USA) |
| Reference | Meaning |
|---|---|
| 2007274 | 5/9 Secondary reference Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co |
| LS1588C10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-458-8655 is a Washer,flat, manufactured by Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-458-8655 has 2 manufacturer part numbers on file: LS1588C10 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co), LS1588C10 (Fabrication Specialty Inc Dba Fabrication Specialty Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-039-1846, 5805-01-151-9245. Verify interchangeability with system specifications before substitution.
Key specifications for LS1588C10: Overall Diameter: 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Material Document and Classification: MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 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.