PartsTable TECHNICAL DATA SHEET

NSN 6680-01-678-9276Government record, cited

Switch, Liquid Level6680-01-678-9276

NSN 6680-01-678-9276 · NIIN 016789276 · Part number NV1021595-1

Hamilton Sundstrand Corporation Dba Collins Aerospace · FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 73030

Government record, cited

NSN 6680-01-678-9276 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-678-9276. Manufacturer of record part number: NV1021595-1.

Also searched as 6680-01-678-9276 · 6680016789276 · NIIN 016789276 · 01-678-9276 · FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · CAGE 73030 · NV1021595-1 · NV1022980-34 · NV1022980 · S9515-A6-MMA-010 FIG 7-45-14 · S9515-A6-MMA-010 TBL 7-51-14

Nearby stock numbers ← 6680-01-678-9272 Indicator Subassembly, Liquid Qua · 6680-01-678-9808 Transmitter, Liquid Quantity →

Features

Switch,liquid Level — FSC 6680
1 manufacturer part number on file
Manufacturer of record: Hamilton Sundstrand Corporation Dba Collins Aerospace

Identification

NSN: 6680-01-678-9276
NIIN: 016789276
FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: NV1021595-1
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace

General Description

The Switch,liquid Level, cataloged under National Stock Number 6680-01-678-9276, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Switch,liquid Level
FSC / FSG	6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments (FSG 66)
Manufacturers	Hamilton Sundstrand Corporation Dba Collins Aerospace (CAGE 73030)

Technical Specifications

Parameter	Value
NSN	6680-01-678-9276
Primary Part Number	NV1021595-1
Item Name	Switch,liquid Level
FSC / FSG	6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Manufacturer	Hamilton Sundstrand Corporation Dba Collins Aerospace
Status	ACTIVE

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 8

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

5905-01-679-2123NV1022784-1 POSSIBLE MATCH

RESISTOR,THERMAL

Possible match (shared part number)Hamilton Sundstrand Corporation Dba Collins Aerospace

5365-01-679-4137H805-06-H POSSIBLE MATCH

PLUG,MACHINE THREAD

Possible match (shared part number)Admiral Valve Llc Dba Cpv Manufacturing

4330-01-680-3908NV1021666-1 POSSIBLE MATCH

FILTERING DISK,FLUID

Possible match (shared part number)Hamilton Sundstrand Corporation Dba Collins Aerospace

5935-01-702-2740 POSSIBLE MATCH

CONNECTOR,RECEPTACLE,ELECTRICAL

Possible match (shared part number)

5935-01-702-2758443HS011M0903-4AB POSSIBLE MATCH

BACKSHELL,ELECTRICAL CONNECTOR

Possible match (shared part number)Ducommun Labarge Technologies, Inc.

5935-01-702-2763443HS011M1516-5AB POSSIBLE MATCH

BACKSHELL,ELECTRICAL CONNECTOR

Possible match (shared part number)Ducommun Labarge Technologies, Inc.

5935-01-702-2766443HJ011M1303AB POSSIBLE MATCH

BACKSHELL,ELECTRICAL CONNECTOR

Possible match (shared part number)Ducommun Labarge Technologies, Inc.

4330-01-702-8034NV1021667-1 POSSIBLE MATCH

FILTERING DISK,FLUID

Possible match (shared part number)Hamilton Sundstrand Corporation Dba Collins Aerospace

Cross-Reference Index

Part Number	Manufacturer
NV1021595-1 PRIMARY	Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)

Reference documents

Reference	Meaning
NV1022980-34	C/1 Advisory reference — outside the item-of-supply concept Hamilton Sundstrand Corporation Dba Collins Aerospace
NV1022980	D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace
S9515-A6-MMA-010 FIG 7-45-14	C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command
S9515-A6-MMA-010 TBL 7-51-14	C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command

Related Parts

5905-01-679-2123POSSIBLE MATCH

RESISTOR,THERMAL

NV1022784-1

5365-01-679-4137POSSIBLE MATCH

PLUG,MACHINE THREAD

H805-06-H

4330-01-680-3908POSSIBLE MATCH

FILTERING DISK,FLUID

NV1021666-1

5935-01-702-2740POSSIBLE MATCH

CONNECTOR,RECEPTACLE,ELECTRICAL

5935-01-702-2758POSSIBLE MATCH

BACKSHELL,ELECTRICAL CONNECTOR

443HS011M0903-4AB

5935-01-702-2763POSSIBLE MATCH

BACKSHELL,ELECTRICAL CONNECTOR

443HS011M1516-5AB

5935-01-702-2766POSSIBLE MATCH

BACKSHELL,ELECTRICAL CONNECTOR

443HJ011M1303AB

4330-01-702-8034POSSIBLE MATCH

FILTERING DISK,FLUID

NV1021667-1

Frequently Asked Questions

What is NSN 6680-01-678-9276?

NSN 6680-01-678-9276 is a Switch,liquid Level, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.

What part numbers are listed for NSN 6680-01-678-9276?

NSN 6680-01-678-9276 has 1 manufacturer part number on file: NV1021595-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 6680-01-678-9276?

8 possible matches (shared part number, not a government interchangeability claim): 5905-01-679-2123, 5365-01-679-4137, 4330-01-680-3908. Verify interchangeability with system specifications before substitution.

Is NSN 6680-01-678-9276 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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