The Bolt,tee Head, cataloged under National Stock Number 5306-00-703-6830, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-703-6830 |
| Primary Part Number | GB16A4-9 |
| Item Name | Bolt,tee Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Fastener Length | 2.125 INCHES NOMINAL IN |
| Tee Bolt Cylindrical Head Diameter | 0.256 INCHES NOMINAL IN |
| Thread Length | 1.188 INCHES MINIMUM IN |
| Material Document and Classification | MIL-S-18732 CONDITION HT 125 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | TEE NO. 5 |
| Thread Direction | RIGHT-HAND |
| Head Length | 0.625 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 431 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| GB16A4-9 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 200S4-2 1-4 | 5/9 Secondary reference U.S. Government activity |
| 200S4-200-3/4 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-703-6830 is a Bolt,tee Head, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-703-6830 has 1 manufacturer part number on file: GB16A4-9 (Northrop Grumman Systems Corporation).
Key specifications for GB16A4-9: Fastener Length: 2.125 INCHES NOMINAL IN; Tee Bolt Cylindrical Head Diameter: 0.256 INCHES NOMINAL IN; Thread Length: 1.188 INCHES MINIMUM IN; Material Document and Classification: MIL-S-18732 CONDITION HT 125 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.