The Washer,split, cataloged under National Stock Number 5310-01-233-9972, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-233-9972 |
| Primary Part Number | 12300999 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Distance Across Split Opening | 0.060 INCHES MAXIMUM IN |
| Style Designator | SPLIT |
| Material Document and Classification | ASTM A109,TEMPER 4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.557 INCHES MINIMUM AND 1.567 INCHES MAXIMUM IN |
| Material Thickness | 0.028 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.169 INCHES MINIMUM AND 1.179 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 |
|---|---|
| 12300999 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-233-9972 is a Washer,split, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-233-9972 has 1 manufacturer part number on file: 12300999 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12300999: Distance Across Split Opening: 0.060 INCHES MAXIMUM IN; Style Designator: SPLIT; Material Document and Classification: ASTM A109,TEMPER 4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.557 INCHES MINIMUM AND 1.567 INCHES MAXIMUM IN. 7 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.