PartsTable TECHNICAL DATA SHEET

NSN 4820-01-013-1765Government record, cited

Seat, Valve4820-01-013-1765

NSN 4820-01-013-1765 · NIIN 010131765

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-013-1765 · 4820010131765 · NIIN 010131765 · 01-013-1765 · FSC 4820 Valves, Nonpowered · 32487-2 · 32487 · 87-103

Nearby stock numbers ← 4820-01-013-1581 · 4820-01-013-1766 →

4820-01-013-1765 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Flange Seat to Disk End Height: 0.096 INCHES NOMINAL IN
Flange Diameter: 0.730 INCHES NOMINAL IN
Body Outside Diameter: 0.563 INCHES NOMINAL IN
Style Designator: PLAIN FLANGED
Body Inside Diameter: 0.255 INCHES NOMINAL IN
Under Flange Height: 0.250 INCHES NOMINAL IN
Material: PLASTIC POLYAMIDE NYLON OVERALL

Identification

NSN: 4820-01-013-1765
NIIN: 010131765
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-013-1765, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-013-1765
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flange Seat to Disk End Height	0.096 INCHES NOMINAL IN
Flange Diameter	0.730 INCHES NOMINAL IN
Body Outside Diameter	0.563 INCHES NOMINAL IN
Style Designator	PLAIN FLANGED
Body Inside Diameter	0.255 INCHES NOMINAL IN
Under Flange Height	0.250 INCHES NOMINAL IN
Material	PLASTIC POLYAMIDE NYLON 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 5

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

1650-01-076-2209324872 POSSIBLE MATCH

PLATE RETAINER

Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South

5965-01-282-607212-514069-24 POSSIBLE MATCH

SHIELD,MICROPHONE

Possible match (shared part number)General Dynamics Mission Systems, Inc.

4820-01-287-487532487 POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)Eaton Aerospace Llc Dba Eaton Aerospace Jackson

5310-01-311-1605324872 POSSIBLE MATCH

NUT,SLEEVE

Possible match (shared part number)Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling

3040-01-345-151232487 POSSIBLE MATCH

CYLINDER,ACTUATING,LINEAR

Possible match (shared part number)Allied Systems Company Dba Allied Systems Co

Cross-Reference Index

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

Reference documents

Reference	Meaning
32487-2	C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity
32487	3/2 Design control — primary reference U.S. Government activity
87-103	5/9 Secondary reference Tobul J O Co

Related Parts

1650-01-076-2209POSSIBLE MATCH

PLATE RETAINER

324872

5965-01-282-6072POSSIBLE MATCH

SHIELD,MICROPHONE

12-514069-24

4820-01-287-4875POSSIBLE MATCH

SEAT,VALVE

32487

5310-01-311-1605POSSIBLE MATCH

NUT,SLEEVE

324872

3040-01-345-1512POSSIBLE MATCH

CYLINDER,ACTUATING,LINEAR

32487

Frequently Asked Questions

What is NSN 4820-01-013-1765?

NSN 4820-01-013-1765 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-013-1765?

5 possible matches (shared part number, not a government interchangeability claim): 1650-01-076-2209, 5965-01-282-6072, 4820-01-287-4875. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-013-1765?

Key specifications for 4820-01-013-1765: Flange Seat to Disk End Height: 0.096 INCHES NOMINAL IN; Flange Diameter: 0.730 INCHES NOMINAL IN; Body Outside Diameter: 0.563 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-013-1765 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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