The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-277-0880, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Federal Manufacturing Corp. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-277-0880 |
| Primary Part Number | BACB30SX30-35 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Federal Manufacturing Corp |
| Status | ACTIVE |
| Head Height | 18.74 MILLIMETERS MINIMUM AND 19.26 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 4H |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 2.0 |
| Thread Length | 45.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 30.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 35.0 MILLIMETERS NOMINAL MM |
| Width Between Flats | 45.38 MILLIMETERS MINIMUM AND 46.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| BACB30SX30-35 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 74587-M302-35 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30SX30-35 PRIMARY | Federal Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| VS3078-30-35 | 5/2 Secondary reference U.S. Government activity |
| 74597-M302-35 | 5/2 Secondary reference U.S. Government activity |
| BACB30SX30-35 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BACB30SX30-35 | 5/9 Secondary reference U.S. Government activity |
| BACB30SX30-35 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5306-01-277-0880 is a Bolt,close Tolerance, manufactured by Federal Manufacturing Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-277-0880 has 3 manufacturer part numbers on file: BACB30SX30-35 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 74587-M302-35 (Sps Technologies, Llc Dba PB Fasteners), BACB30SX30-35 (Federal Manufacturing Corp).
Key specifications for BACB30SX30-35: Head Height: 18.74 MILLIMETERS MINIMUM AND 19.26 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4H; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Pitch in Millimeters: 2.0. 14 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.