The Cup,grease, cataloged under National Stock Number 4730-00-734-0106, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Dresser, Llc. Government technical data includes 7 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. 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 | 4730-00-734-0106 |
| Primary Part Number | B577 |
| Item Name | Cup,grease |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Assembly Clearance Radius | 0.625 INCHES MAXIMUM IN |
| Style Designator | STRAIGHT, CAP FEED, W/BALL CHECK |
| Nominal Thread Size | 0.125 INCHES IN |
| Height | 2.250 INCHES NOMINAL IN |
| Screw Thread Series Designator | NPT |
| Grease Capacity | 0.500 OUNCES OZ |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-00-734-0106 is a Cup,grease, manufactured by Dresser, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-734-0106 has 2 manufacturer part numbers on file: B577 (Dresser, Llc), 7340106 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-492-6594. Verify interchangeability with system specifications before substitution.
Key specifications for B577: Assembly Clearance Radius: 0.625 INCHES MAXIMUM IN; Style Designator: STRAIGHT, CAP FEED, W/BALL CHECK; Nominal Thread Size: 0.125 INCHES IN; Height: 2.250 INCHES NOMINAL IN. 7 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.