The Bolt,tee Head, cataloged under National Stock Number 5306-01-258-9099, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Beta Fueling Systems, Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-258-9099 |
| Primary Part Number | K172 |
| Item Name | Bolt,tee Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Beta Fueling Systems, Llc |
| Status | ACTIVE |
| Head Height | 0.750 INCHES NOMINAL IN |
| Fastener Length | 5.062 INCHES NOMINAL IN |
| Thread Length | 2.750 INCHES NOMINAL IN |
| Head Style | TEE NO. 3 |
| Thread Direction | RIGHT-HAND |
| Head Length | 1.875 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 |
|---|---|
| K172 PRIMARY | Beta Fueling Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| K172 | 3/9 Design control — primary reference Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division |
NSN 5306-01-258-9099 is a Bolt,tee Head, manufactured by Beta Fueling Systems, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-258-9099 has 1 manufacturer part number on file: K172 (Beta Fueling Systems, Llc).
Key specifications for K172: Head Height: 0.750 INCHES NOMINAL IN; Fastener Length: 5.062 INCHES NOMINAL IN; Thread Length: 2.750 INCHES NOMINAL IN; Head Style: TEE NO. 3. 6 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.