PartsTable TECHNICAL DATA SHEET

NSN 4820-01-340-5948Government record, cited

Gear Operator, Valve4820-01-340-5948

NSN 4820-01-340-5948 · NIIN 013405948 · Part number C81749 ASSY M81749-1

Transdigm Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04638

Government record, cited

NSN 4820-01-340-5948 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-340-5948. Manufacturer of record part number: C81749 ASSY M81749-1.

Also searched as 4820-01-340-5948 · 4820013405948 · NIIN 013405948 · 01-340-5948 · FSC 4820 Valves, Nonpowered · CAGE 04638 · C81749 ASSY M81749-1 · M81749-1 · M81749

Nearby stock numbers ← 4820-01-340-5939 Retainer, Disk, Valve · 4820-01-340-5970 Slide, Directional Control Linear →

4820-01-340-5948 — Valves, Nonpowered

Features

Gear Operator,valve — FSC 4820
Features Provided: HANDWHEEL
2 manufacturer part numbers on file
Manufacturer of record: Transdigm Inc

Identification

NSN: 4820-01-340-5948
NIIN: 013405948
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: C81749 ASSY M81749-1
Manufacturer: Transdigm Inc

General Description

The Gear Operator,valve, cataloged under National Stock Number 4820-01-340-5948, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Transdigm Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-340-5948
Primary Part Number	C81749 ASSY M81749-1
Item Name	Gear Operator,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Transdigm Inc
Status	ACTIVE
Features Provided	HANDWHEEL

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

Cross-Reference Index

Part Number	Manufacturer
M81749-1	Transdigm Inc (USA)
C81749 ASSY M81749-1 PRIMARY	Transdigm Inc (USA)

Reference documents

Reference	Meaning
M81749	D/9 Drawing number reference only Transdigm Inc

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-340-5948?

NSN 4820-01-340-5948 is a Gear Operator,valve, manufactured by Transdigm Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-340-5948?

NSN 4820-01-340-5948 has 2 manufacturer part numbers on file: M81749-1 (Transdigm Inc), C81749 ASSY M81749-1 (Transdigm Inc).

What are the specifications of C81749 ASSY M81749-1?

Key specifications for C81749 ASSY M81749-1: Features Provided: HANDWHEEL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-340-5948 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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