The Stem,fluid Valve, cataloged under National Stock Number 4820-00-987-7970, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tyco Fire Products Lp. Government technical data includes 3 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-987-7970 |
| Primary Part Number | B101-6024 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Largest Outside Diameter | 0.688 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| B101-6024 | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| 845-2007656 | D/9 Drawing number reference only U.S. Government activity |
| 845-2007659 PC12 | 3/2 Design control — primary reference U.S. Government activity |
| 845-2007659 | D/9 Drawing number reference only U.S. Government activity |
| 2640-087-12 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 845-1889836 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-00-987-7970 is a Stem,fluid Valve, manufactured by Tyco Fire Products Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-987-7970 has 1 manufacturer part number on file: B101-6024 (Tyco Fire Products Lp).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-160-8232, 4820-01-161-7787, 4820-01-171-3348. Verify interchangeability with system specifications before substitution.
Key specifications for B101-6024: Valve Type for Which Designed: BALL; Largest Outside Diameter: 0.688 INCHES NOMINAL IN; Overall Length: 4.438 INCHES NOMINAL IN; Material: COPPER ALLOY. 3 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.