PartsTable TECHNICAL DATA SHEET

NSN 4820-01-516-8277Government record, cited

Stem, Fluid Valve4820-01-516-8277

NSN 4820-01-516-8277 · NIIN 015168277

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-516-8277 · 4820015168277 · NIIN 015168277 · 01-516-8277 · FSC 4820 Valves, Nonpowered · 1385789 · 803-1385789TYB-3IN PIECE 8 · 803-1385789TYB SH 1 PC NO.8

Nearby stock numbers ← 4820-01-516-8275 Seat, Valve · 4820-01-516-8279 Cock, Poppet Drain →

4820-01-516-8277 — Valves, Nonpowered

Features

Stem,fluid Valve — FSC 4820
Largest Outside Diameter: 1.250 INCHES NOMINAL IN
Stem Actuating End Type: THREADED EXTERNALLY
Material Document and Classification: QQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE
Features Provided: KEYWAY AND THREADED
Valve Size for Which Designed: 3.000 INCHES IN
Material: NICKEL ALLOY R-405

Identification

NSN: 4820-01-516-8277
NIIN: 015168277
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-516-8277, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-516-8277
Item Name	Stem,fluid Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Largest Outside Diameter	1.250 INCHES NOMINAL IN
Stem Actuating End Type	THREADED EXTERNALLY
Material Document and Classification	QQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE
Features Provided	KEYWAY AND THREADED
Valve Size for Which Designed	3.000 INCHES IN
Material	NICKEL ALLOY R-405

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 7

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

4820-01-516-8281803-1385789TYPB-3IN PIECE 6 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Naval Ship Systems Command

4730-01-520-39591385789 PC.3(1-1/2 INCH DIA) POSSIBLE MATCH

STRAINER ELEMENT,SEDIMENT

Possible match (shared part number)Naval Ship Systems Command

4730-01-520-39821385789 PC. NO. 3-2-INCH POSSIBLE MATCH

STRAINER ELEMENT,SEDIMENT

Possible match (shared part number)Naval Ship Systems Command

5305-01-545-8593803-1385789PC9 POSSIBLE MATCH

SCREW,MACHINE

Possible match (shared part number)Naval Ship Systems Command

4820-01-547-2839803-1385789TYG 2IN SH 7 PC NO 6 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Naval Ship Systems Command

4510-01-658-96211385789 POSSIBLE MATCH

STRAINER,WASTE DRAIN

Possible match (shared part number)Naval Ship Systems Command

2040-01-687-6107D3BK309-S97 POSSIBLE MATCH

DRAIN KIT,DECK

Possible match (shared part number)Loeffler Corp

Cross-Reference Index

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

Reference documents

Reference	Meaning
1385789	D/9 Drawing number reference only U.S. Government activity
803-1385789TYB-3IN PIECE 8	3/2 Design control — primary reference U.S. Government activity
803-1385789TYB SH 1 PC NO.8	5/2 Secondary reference U.S. Government activity

Related Parts

4820-01-516-8281POSSIBLE MATCH

DISK,VALVE

803-1385789TYPB-3IN PIECE 6

4730-01-520-3959POSSIBLE MATCH

STRAINER ELEMENT,SEDIMENT

1385789 PC.3(1-1/2 INCH DIA)

4730-01-520-3982POSSIBLE MATCH

STRAINER ELEMENT,SEDIMENT

1385789 PC. NO. 3-2-INCH

5305-01-545-8593POSSIBLE MATCH

SCREW,MACHINE

803-1385789PC9

4820-01-547-2839POSSIBLE MATCH

DISK,VALVE

803-1385789TYG 2IN SH 7 PC NO 6

4510-01-658-9621POSSIBLE MATCH

STRAINER,WASTE DRAIN

1385789

2040-01-687-6107POSSIBLE MATCH

DRAIN KIT,DECK

D3BK309-S97

Frequently Asked Questions

What is NSN 4820-01-516-8277?

NSN 4820-01-516-8277 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-516-8277?

7 possible matches (shared part number, not a government interchangeability claim): 4820-01-516-8281, 4730-01-520-3959, 4730-01-520-3982. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-516-8277?

Key specifications for 4820-01-516-8277: Largest Outside Diameter: 1.250 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY; Material Document and Classification: QQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 2.625 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-516-8277 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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