PartsTable TECHNICAL DATA SHEET

NSN 4520-01-144-0340Government record, cited

Connector4520-01-144-0340

NSN 4520-01-144-0340 · NIIN 011440340 · Part number FLX770128001800

Flexfab Llc · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 16632

Government record, cited

NSN 4520-01-144-0340 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-144-0340. Manufacturer of record part number: FLX770128001800.

Also searched as 4520-01-144-0340 · 4520011440340 · NIIN 011440340 · 01-144-0340 · FSC 4520 Space and Water Heating Equipment · CAGE 16632 · FLX770128001800 · 100864-6 · 100864-6

Nearby stock numbers ← 4520-01-144-0339 Connector · 4520-01-144-2235 Heating Element, Electrical, Nonim →

Features

Connector — FSC 4520
2 manufacturer part numbers on file
Manufacturer of record: Flexfab Llc

Identification

NSN: 4520-01-144-0340
NIIN: 011440340
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: FLX770128001800
Manufacturer: Flexfab Llc

General Description

The Connector, cataloged under National Stock Number 4520-01-144-0340, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Flexfab Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Connector
FSC / FSG	4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers	American Turbo Systems Inc (CAGE 0WE82); Flexfab Llc (CAGE 16632)

Technical Specifications

Parameter	Value
NSN	4520-01-144-0340
Primary Part Number	FLX770128001800
Item Name	Connector
FSC / FSG	4520 / 45 — Space and Water Heating Equipment
Manufacturer	Flexfab Llc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
100864-6	American Turbo Systems Inc (USA)
FLX770128001800 PRIMARY	Flexfab Llc (USA)

Reference documents

Reference	Meaning
100864-6	5/9 Secondary reference Walker Power Systems, Inc. Dba Tiernay Turbines

No interchangeability data on file.

Other items in FSC 4520 — Space and Water Heating Equipment

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

4520-00-000-0098

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-000-0099

4520-00-000-0099 · Item name not on file

4520-00-001-1240

4520-00-001-1240 · Item name not on file

4520-00-001-3518

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-001-3519

HEATING ELEMENT,ELECTRICAL,IMMER

4520-00-001-6052

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-001-6298

HEATING ELEMENT,ELECTRICAL,NONIM

4520-00-001-7726

HEATER,DUCT TYPE,PORTABLE

Frequently Asked Questions

What is NSN 4520-01-144-0340?

NSN 4520-01-144-0340 is a Connector, manufactured by Flexfab Llc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-144-0340?

NSN 4520-01-144-0340 has 2 manufacturer part numbers on file: 100864-6 (American Turbo Systems Inc), FLX770128001800 (Flexfab Llc).

Is NSN 4520-01-144-0340 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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