The Bolt,u, cataloged under National Stock Number 5306-01-259-7736, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-259-7736 |
| Primary Part Number | 123SCAB100-21 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Inside Distance Between Shanks | 0.327 INCHES MINIMUM AND 0.342 INCHES MAXIMUM IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Distance From Inside Center of Bend to Bolt End | 0.840 INCHES NOMINAL IN |
| Style Designator | ROUND BEND |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 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 |
|---|---|
| 123SCAB100-21 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 123SCAB100-21 | Nell-Joy Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 123SCAB100-21 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 7252-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5306-01-259-7736 is a Bolt,u, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-259-7736 has 2 manufacturer part numbers on file: 123SCAB100-21 (Northrop Grumman Systems Corporation), 123SCAB100-21 (Nell-Joy Industries, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-517-6279. Verify interchangeability with system specifications before substitution.
Key specifications for 123SCAB100-21: Inside Distance Between Shanks: 0.327 INCHES MINIMUM AND 0.342 INCHES MAXIMUM IN; Thread Length: 0.500 INCHES NOMINAL IN; Distance From Inside Center of Bend to Bolt End: 0.840 INCHES NOMINAL IN; Style Designator: ROUND BEND. 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.