The Washer,key, cataloged under National Stock Number 5310-01-005-3107, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-005-3107 |
| Primary Part Number | S1323GB |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Overall Distance Including Keys | 2.281 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | ASTM A 276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.812 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| External Key Quantity | 7 |
| Material | STEEL COMP 303 OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Tapered Key Major Width | 0.250 INCHES NOMINAL IN |
| Hole Diameter | 0.531 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 |
|---|---|
| S1323GB PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| S1323GB | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 5310-01-005-3107 is a Washer,key, manufactured by Circor Pumps North America Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-005-3107 has 1 manufacturer part number on file: S1323GB (Circor Pumps North America Llc).
Key specifications for S1323GB: Overall Distance Including Keys: 2.281 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: ASTM A 276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.812 INCHES NOMINAL IN. 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.