The Valve,angle, cataloged under National Stock Number 4820-01-090-9653, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-090-9653 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | STEM |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Style Designator | ANGLE |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-P-5516,CLASSB MIL SPEC SINGLE MATERIAL RESPONSE PACKING |
| Material Document and Classification | QQ-C-465,COM+630 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Nominal Outside Diameter Tube Accommodated | 0.125 INCHES FIRST END IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Thread Direction | RIGHT-HAND SECOND END |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Bonnet Attachment Method | THREADED |
| Material | NICKEL ALLOY 400 BODY |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Material | COPPER ALLOY 630 FLOW CONTROL DEVICE |
| Thread Series Designator | NPT SECOND END |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2640-599 ASSYBS | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
| 11-97-2911 | 5/2 Secondary reference U.S. Government activity |
| 2640-599 | D/9 Drawing number reference only U.S. Government activity |
| 2640-599ASSYB | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-090-9653 is a Valve,angle, classified under FSC 4820, Valves, Nonpowered. Status: active.
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-132-7184, 4820-01-157-3617, 4730-01-157-6462. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-090-9653: Flow Control Device: STEM; Connection Style: PLAIN (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 19 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.