The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-151-9331, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Kelsey-Hayes Co Gunite Div. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-151-9331 |
| Primary Part Number | W-980-R |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Kelsey-Hayes Co Gunite Div |
| Status | ACTIVE |
| Head Height | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Fastener Length | 3.160 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN |
| Shoulder Length | 1.280 INCHES MINIMUM AND 1.400 INCHES MAXIMUM FIRST SHOULDER IN |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.250 INCHES NOMINAL IN |
| Shoulder Diameter | 0.783 INCHES MINIMUM AND 0.786 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.600 INCHES MINIMUM IN |
| Shoulder Shape | RIBBED FIRST SHOULDER |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Rib Length | 0.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.810 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN |
| Nonstandard Thread Pitch Diameter | +0.7044 TO 0.7104 INCHES IN |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNS |
| Rib Quantity | 36 |
| Head Diameter | 1.190 INCHES MINIMUM AND 1.310 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 |
|---|---|
| W-980-R PRIMARY | Kelsey-Hayes Co Gunite Div (USA) |
| ZAT969 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| ZAT969 | 5/9 Secondary reference Oshkosh Corp |
| W980-R | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-01-151-9331 is a Bolt,ribbed Shoulder, manufactured by Kelsey-Hayes Co Gunite Div, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-151-9331 has 2 manufacturer part numbers on file: W-980-R (Kelsey-Hayes Co Gunite Div), ZAT969 (Oshkosh Defense Llc).
Key specifications for W-980-R: Head Height: 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Fastener Length: 3.160 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN; Shoulder Length: 1.280 INCHES MINIMUM AND 1.400 INCHES MAXIMUM FIRST SHOULDER IN; Distance From Largest Diameter of Bearing Surface of Head to Ribs: 0.250 INCHES NOMINAL IN. 20 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.