The Washer,key, cataloged under National Stock Number 5310-00-941-3768, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-941-3768 |
| Primary Part Number | 502358 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Internal Straight Key Width | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS5040 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5042 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.840 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN |
| Material Thickness | 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN |
| Material | STEEL COMP 1010 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 2.340 INCHES MINIMUM AND 2.360 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 |
|---|---|
| 502358 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 502358 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 502358 | 3/9 Design control — primary reference Alinabal Holdings Corporation Div Engineered Products Group |
| 502358 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5310-00-941-3768 is a Washer,key, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-941-3768 has 2 manufacturer part numbers on file: 502358 (Rtx Corporation Div Pratt & Whitney), 502358 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 502358: Internal Straight Key Width: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: AMS5040 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5042 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.