The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-00-550-3593, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 10 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-550-3593 |
| Primary Part Number | 511413 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Shoulder Height | 0.0555 INCHES MINIMUM AND 0.0575 INCHES MAXIMUM IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED AND RECESSED |
| Material Document and Classification | AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5504 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Material Thickness | 0.0545 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Material | STEEL COMP 410 OVERALL |
| Hole Diameter | 0.158 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Recess Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| 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 |
|---|---|
| 511413 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| 511413 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 511413 | 3/9 Design control — primary reference U.S. Government activity |
| 309688 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 511413 | 5/9 Secondary reference Comet Mfg Co Inc |
| 511413 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 309688 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 511413 | 5/9 Secondary reference Cooper Industries Inc Cooper Petroleum Equipment Div Sunnyvale Operation |
NSN 5310-00-550-3593 is a Washer,shouldered and Recessed, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-550-3593 has 2 manufacturer part numbers on file: 511413 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 511413 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 4240-01-285-0616, 6515-01-591-3583. Verify interchangeability with system specifications before substitution.
Key specifications for 511413: Shoulder Height: 0.0555 INCHES MINIMUM AND 0.0575 INCHES MAXIMUM IN; Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM; Style Designator: SHOULDERED AND RECESSED; Material Document and Classification: AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5504 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 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.