The Retainer,ball Pivot, cataloged under National Stock Number 4820-01-296-6913, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-296-6913 |
| Primary Part Number | 77774-30XS PIECE 15 |
| Item Name | Retainer,ball Pivot |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| General Characteristics Item Description | CRES QQ-S-763 CL 316L COND A;2.000 IN. LG;1.000 IN. H;0.656 IN. SPHERICAL RADIUS 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 |
|---|---|
| 77774-30XS PIECE 15 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 2144155 | D/9 Drawing number reference only U.S. Government activity |
| 2144155 PIECE 15 | 5/2 Secondary reference U.S. Government activity |
| 77774-30X3 | D/9 Drawing number reference only U.S. Government activity |
| 77774-30X3 PIECE 15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-296-6913 is a Retainer,ball Pivot, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-296-6913 has 1 manufacturer part number on file: 77774-30XS PIECE 15 (Derbyshire Machine & Tool Co).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-298-8761. Verify interchangeability with system specifications before substitution.
Key specifications for 77774-30XS PIECE 15: General Characteristics Item Description: CRES QQ-S-763 CL 316L COND A;2.000 IN. LG;1.000 IN. H;0.656 IN. SPHERICAL RADIUS IN. 1 specification is 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.