The Knob, cataloged under National Stock Number 5355-01-124-9977, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Air Armament Center/ En. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-124-9977 |
| Primary Part Number | 757158 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Air Armament Center/ En |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.170 INCHES NOMINAL IN |
| Overall Thickness | 0.400 INCHES NOMINAL IN |
| Skirt Outside Diameter | 2.500 INCHES NOMINAL IN |
| Style Designator | ROUND WITH FIN LEVER AND SLOTTED BACK |
| Material Document and Classification | QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 2 |
| Gripping Surface Condition | GRIP AID |
| Skirt Design | NONDETACHABLE |
| Material | ALUMINUM ALLOY 6061 |
| Skirt Style | RING |
| Attachment Method | SETSCREWS |
| 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 |
|---|---|
| 757158 PRIMARY | Air Armament Center/ En (USA) |
| Reference | Meaning |
|---|---|
| 10163947 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5355-01-124-9977 is a Knob, manufactured by Air Armament Center/ En, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-124-9977 has 1 manufacturer part number on file: 757158 (Air Armament Center/ En).
Key specifications for 757158: Distance From Hole Center to Knob/skirt Base: 0.170 INCHES NOMINAL IN; Overall Thickness: 0.400 INCHES NOMINAL IN; Skirt Outside Diameter: 2.500 INCHES NOMINAL IN; Style Designator: ROUND WITH FIN LEVER AND SLOTTED BACK. 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.