PartsTable TECHNICAL DATA SHEET

NSN 5340-00-074-9511Government record, cited

Stop, Mechanical5340-00-074-9511

NSN 5340-00-074-9511 · NIIN 000749511 · Part number B123-45

Avionics Specialties, Inc. · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 10639

Government record, cited

NSN 5340-00-074-9511 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-074-9511. Manufacturer of record part number: B123-45.

Also searched as 5340-00-074-9511 · 5340000749511 · NIIN 000749511 · 00-074-9511 · FSC 5340 Hardware, Commercial · CAGE 10639 · B123-45 · 123-45 · 123-0045 · 123-45

Nearby stock numbers ← 5340-00-074-9393 · 5340-00-074-9520 Insert, Self-Locking →

Features

Stop,mechanical — FSC 5340
3 manufacturer part numbers on file
Manufacturer of record: Avionics Specialties, Inc.

Identification

NSN: 5340-00-074-9511
NIIN: 000749511
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: B123-45
Manufacturer: Avionics Specialties, Inc.

General Description

The Stop,mechanical, cataloged under National Stock Number 5340-00-074-9511, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Avionics Specialties, Inc.. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.

Technical Specifications

Parameter	Value
NSN	5340-00-074-9511
Primary Part Number	B123-45
Item Name	Stop,mechanical
FSC / FSG	5340 / 53 — Hardware, Commercial
Manufacturer	Avionics Specialties, Inc.
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X
Unit of Issue	EA

⇄ Related Items 9

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

5930-00-565-9391 POSSIBLE MATCH

SWITCH,ROTARY

Possible match (shared part number)

5960-00-878-6554 POSSIBLE MATCH

ELECTRON TUBE

Possible match (shared part number)

2540-01-167-3771475923C91 POSSIBLE MATCH

ARM,WINDSHIELD WIPER

Possible match (shared part number)Navistar Intl Corp Truck Br Ohio Plant

3040-01-342-138312345 POSSIBLE MATCH

AXLE,SHOULDERED

Possible match (shared part number)DP Manufacturing Inc.

2530-01-347-7428KSR2024515Q POSSIBLE MATCH

PARTS KIT,BRAKE SHOE

Possible match (shared part number)Meritor Heavy Vehicle Systems, Llc

3010-01-418-407912345-505 POSSIBLE MATCH

DRIVE UNIT,ANGLE

Possible match (shared part number)B.w. Elliott Manufacturing Co., Llc

9330-01-502-445412345 POSSIBLE MATCH

PLASTIC MATERIAL,CELLULAR

Possible match (shared part number)Foamex Lp

5325-01-530-246650-116-5 POSSIBLE MATCH

INSERT,PANEL FASTENER

Possible match (shared part number)Bell Textron Inc

4720-01-591-4192222022-40C(MOD) POSSIBLE MATCH

SPRING,REINFORCING,HOSE

Possible match (shared part number)Danfoss Power Solutions II, Llc

Cross-Reference Index

Part Number	Manufacturer
B123-45 PRIMARY	Avionics Specialties, Inc. (USA)
123-0045	Avionics Specialties, Inc. (USA)
123-45	Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/ (USA)

Reference documents

Reference	Meaning
123-45	5/9 Secondary reference Avionics Specialties, Inc.

Related Parts

5930-00-565-9391POSSIBLE MATCH

SWITCH,ROTARY

5960-00-878-6554POSSIBLE MATCH

ELECTRON TUBE

2540-01-167-3771POSSIBLE MATCH

ARM,WINDSHIELD WIPER

475923C91

3040-01-342-1383POSSIBLE MATCH

AXLE,SHOULDERED

12345

2530-01-347-7428POSSIBLE MATCH

PARTS KIT,BRAKE SHOE

KSR2024515Q

3010-01-418-4079POSSIBLE MATCH

DRIVE UNIT,ANGLE

12345-505

9330-01-502-4454POSSIBLE MATCH

PLASTIC MATERIAL,CELLULAR

12345

5325-01-530-2466POSSIBLE MATCH

INSERT,PANEL FASTENER

50-116-5

4720-01-591-4192POSSIBLE MATCH

SPRING,REINFORCING,HOSE

222022-40C(MOD)

Frequently Asked Questions

What is NSN 5340-00-074-9511?

NSN 5340-00-074-9511 is a Stop,mechanical, manufactured by Avionics Specialties, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.

What part numbers are listed for NSN 5340-00-074-9511?

NSN 5340-00-074-9511 has 3 manufacturer part numbers on file: B123-45 (Avionics Specialties, Inc.), 123-0045 (Avionics Specialties, Inc.), 123-45 (Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/).

What NSN replaces 5340-00-074-9511?

9 possible matches (shared part number, not a government interchangeability claim): 5930-00-565-9391, 5960-00-878-6554, 2540-01-167-3771. Verify interchangeability with system specifications before substitution.

What are the specifications of B123-45?

Key specifications for B123-45: Special Features: STAINLESS STEEL PER QQ-S-764 TYPE 303 OR 303SE,COND A;0.495 IN. O/A DIA IN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5340-00-074-9511 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). 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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