PartsTable TECHNICAL DATA SHEET

NSN 4820-01-147-9328Government record, cited

Vent and Drain Assembly4820-01-147-9328

NSN 4820-01-147-9328 · NIIN 011479328

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-147-9328 · 4820011479328 · NIIN 011479328 · 01-147-9328 · FSC 4820 Valves, Nonpowered · 845-4775995ASSYA84-1 · 2621-166-04 · 2621-166-04 ASSY A84 · 845-4775995

Nearby stock numbers ← 4820-01-147-9322 · 4820-01-147-9334 Valve, Regulating, Fluid Pressure →

4820-01-147-9328 — Valves, Nonpowered

Features

Vent and Drain Assembly — FSC 4820
General Characteristics Item Description: CONSISTS OF 1 EA BODY,RETAINER,VALVE,PLUG; 2 EA RING; 3 EA O-RING; 6 EA SCREWS; 4 EA WASHERS

Identification

NSN: 4820-01-147-9328
NIIN: 011479328
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Vent and Drain Assembly, cataloged under National Stock Number 4820-01-147-9328, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-147-9328
Item Name	Vent and Drain Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
General Characteristics Item Description	CONSISTS OF 1 EA BODY,RETAINER,VALVE,PLUG; 2 EA RING; 3 EA O-RING; 6 EA SCREWS; 4 EA WASHERS

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 9

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

4730-01-152-92662621-166-04 ASSY 68 POSSIBLE MATCH

ELBOW,FLANGE TO BOSS

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-162-511218-97-4062 POSSIBLE MATCH

ELBOW,FLANGE TO PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-167-98632621-166-04 ASSY 55 POSSIBLE MATCH

ELBOW,FLANGE TO PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-173-12472621-166-04 ASSY 112 POSSIBLE MATCH

ELBOW,FLANGE TO TUBE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-178-70762621-166-04 ASSY A88 POSSIBLE MATCH

ELBOW,FLANGE TO PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-192-292718-00-5650 POSSIBLE MATCH

ELBOW,DRAINAGE PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-318-62232621-166-04 PC 202 POSSIBLE MATCH

ELBOW,PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-329-1844262116604-211A POSSIBLE MATCH

ELBOW,PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-329-1845262116604-160 POSSIBLE MATCH

ELBOW,PIPE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
845-4775995ASSYA84-1	5/2 Secondary reference U.S. Government activity
2621-166-04	5/9 Secondary reference U.S. Government activity
2621-166-04 ASSY A84	3/2 Design control — primary reference U.S. Government activity
845-4775995	D/9 Drawing number reference only U.S. Government activity

Related Parts

4730-01-152-9266POSSIBLE MATCH

ELBOW,FLANGE TO BOSS

2621-166-04 ASSY 68

4730-01-162-5112POSSIBLE MATCH

ELBOW,FLANGE TO PIPE

18-97-4062

4730-01-167-9863POSSIBLE MATCH

ELBOW,FLANGE TO PIPE

2621-166-04 ASSY 55

4730-01-173-1247POSSIBLE MATCH

ELBOW,FLANGE TO TUBE

2621-166-04 ASSY 112

4730-01-178-7076POSSIBLE MATCH

ELBOW,FLANGE TO PIPE

2621-166-04 ASSY A88

4730-01-192-2927POSSIBLE MATCH

ELBOW,DRAINAGE PIPE

18-00-5650

4730-01-318-6223POSSIBLE MATCH

ELBOW,PIPE

2621-166-04 PC 202

4730-01-329-1844POSSIBLE MATCH

ELBOW,PIPE

262116604-211A

4730-01-329-1845POSSIBLE MATCH

ELBOW,PIPE

262116604-160

Frequently Asked Questions

What is NSN 4820-01-147-9328?

NSN 4820-01-147-9328 is a Vent and Drain Assembly, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-147-9328?

9 possible matches (shared part number, not a government interchangeability claim): 4730-01-152-9266, 4730-01-162-5112, 4730-01-167-9863. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-147-9328?

Key specifications for 4820-01-147-9328: General Characteristics Item Description: CONSISTS OF 1 EA BODY,RETAINER,VALVE,PLUG; 2 EA RING; 3 EA O-RING; 6 EA SCREWS; 4 EA WASHERS. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-147-9328 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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