PartsTable TECHNICAL DATA SHEET

NSN 4820-01-436-2073Government record, cited

Seat, Valve4820-01-436-2073

NSN 4820-01-436-2073 · NIIN 014362073 · Part number BMC-3479CCN PART 17

Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 23798

Government record, cited

NSN 4820-01-436-2073 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-436-2073. Manufacturer of record part number: BMC-3479CCN PART 17.

Also searched as 4820-01-436-2073 · 4820014362073 · NIIN 014362073 · 01-436-2073 · FSC 4820 Valves, Nonpowered · CAGE 23798 · BMC-3479CCN PART 17 · BMC-3479CCN

Nearby stock numbers ← 4820-01-436-1923 Plug Kit, Valve · 4820-01-436-2087 Gage, Regulating Val →

4820-01-436-2073 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Body Outside Diameter: 1.156 INCHES NOMINAL IN
Style Designator: PLAIN
Body Inside Diameter: 0.870 INCHES NOMINAL IN
Material: RUBBER CHLOROPRENE OVERALL
Seating Surface Shape: FLAT
1 manufacturer part number on file
Manufacturer of record: Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

Identification

NSN: 4820-01-436-2073
NIIN: 014362073
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: BMC-3479CCN PART 17
Manufacturer: Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-436-2073, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-436-2073
Primary Part Number	BMC-3479CCN PART 17
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746
Status	ACTIVE
Body Outside Diameter	1.156 INCHES NOMINAL IN
Style Designator	PLAIN
Body Inside Diameter	0.870 INCHES NOMINAL IN
Material	RUBBER CHLOROPRENE OVERALL
Seating Surface Shape	FLAT

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 4

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-436-2299BMC-3479CCN PART 12 POSSIBLE MATCH

PISTON,VALVE

Possible match (shared part number)Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

4820-01-436-2678BMC-3479CCN PART 16 POSSIBLE MATCH

RETAINER,SEAT,VALVE

Possible match (shared part number)Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

4820-01-436-2882BMC-3479CCN POSSIBLE MATCH

VALVE,VACUUM BREAKING

Possible match (shared part number)Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

4820-01-451-9162BMC-3479CCN-1 POSSIBLE MATCH

HEAD,VALVE

Possible match (shared part number)Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

Cross-Reference Index

Part Number	Manufacturer
BMC-3479CCN PART 17 PRIMARY	Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 (USA)

Reference documents

Reference	Meaning
BMC-3479CCN	D/9 Drawing number reference only Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746

Related Parts

4820-01-436-2299POSSIBLE MATCH

PISTON,VALVE

BMC-3479CCN PART 12

4820-01-436-2678POSSIBLE MATCH

RETAINER,SEAT,VALVE

BMC-3479CCN PART 16

4820-01-436-2882POSSIBLE MATCH

VALVE,VACUUM BREAKING

BMC-3479CCN

4820-01-451-9162POSSIBLE MATCH

HEAD,VALVE

BMC-3479CCN-1

Frequently Asked Questions

What is NSN 4820-01-436-2073?

NSN 4820-01-436-2073 is a Seat,valve, manufactured by Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-436-2073?

NSN 4820-01-436-2073 has 1 manufacturer part number on file: BMC-3479CCN PART 17 (Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746).

What NSN replaces 4820-01-436-2073?

4 possible matches (shared part number, not a government interchangeability claim): 4820-01-436-2299, 4820-01-436-2678, 4820-01-436-2882. Verify interchangeability with system specifications before substitution.

What are the specifications of BMC-3479CCN PART 17?

Key specifications for BMC-3479CCN PART 17: Overall Height: 0.281 INCHES NOMINAL IN; Body Outside Diameter: 1.156 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 0.870 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-436-2073 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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