The Washer,key, cataloged under National Stock Number 5310-00-138-9527, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-138-9527 |
| Primary Part Number | 738612-2 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Internal Straight Key Width | 0.120 INCHES NOMINAL0.120 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 1.096 INCHES MINIMUM AND 1.096 INCHES MINIMUM AND 1.101 INCHES MAXIMUM1.101 INCHES MAXIMUM IN |
| Hardness Rating | 75.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM75.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Style Designator | KEYKEY |
| Material Document and Classification | AMS5513 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS5513 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.671 INCHES MINIMUM AND 2.671 INCHES MINIMUM AND 2.681 INCHES MAXIMUM2.681 INCHES MAXIMUM IN |
| Material Thickness | 0.032 INCHES MINIMUM AND 0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM0.040 INCHES MAXIMUM IN |
| Material | STEEL COMP 304 OVERALL |
| Internal Key Quantity | 33 |
| Hole Diameter | 2.551 INCHES MINIMUM AND 2.551 INCHES MINIMUM AND 2.561 INCHES MAXIMUM2.561 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 |
NSN 5310-00-138-9527 is a Washer,key, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-138-9527 has 2 manufacturer part numbers on file: 738612-2 (Meriden Manufacturing, Inc), 738612-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 738612-2: Internal Straight Key Width: 0.120 INCHES NOMINAL0.120 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 1.096 INCHES MINIMUM AND 1.096 INCHES MINIMUM AND 1.101 INCHES MAXIMUM1.101 INCHES MAXIMUM IN; Hardness Rating: 75.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM75.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Style Designator: KEYKEY. 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.