Clamp, Block5342-01-650-2181

NSN 5342-01-650-2181 · NIIN 016502181 · Part number JSFL23P6FS

Umpco, Inc. Dba Umpco Inc · FSC 5342 — Hardware, Weapon System · FSG 53 — Hardware and Abrasives · CAGE 18076

Government record, cited

NSN 5342-01-650-2181 — this item is cataloged by the U.S. Government under National Stock Number 5342-01-650-2181. Manufacturer of record part number: JSFL23P6FS.

Also searched as 5342-01-650-2181 · 5342016502181 · NIIN 016502181 · 01-650-2181 · FSC 5342 Hardware, Weapon System · CAGE 18076 · JSFL23P6FS · S681-6FS · JSFL23

Nearby stock numbers ← 5342-01-650-2180 Clamp, Block · 5342-01-650-2182 Clamp, Loop →

Features

Clamp,block — FSC 5342
2 manufacturer part numbers on file
Manufacturer of record: Umpco, Inc. Dba Umpco Inc

Identification

NSN: 5342-01-650-2181
NIIN: 016502181
FSC: 5342 — Hardware, Weapon System
FSG: 53 — Hardware and Abrasives
Primary part number: JSFL23P6FS
Manufacturer: Umpco, Inc. Dba Umpco Inc

General Description

The Clamp,block, cataloged under National Stock Number 5342-01-650-2181, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Umpco, Inc. Dba Umpco Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Clamp,block
FSC / FSG	5342 — Hardware, Weapon System (FSG 53)
Manufacturers	Umpco, Inc. Dba Umpco Inc (CAGE 18076)

Technical Specifications

Parameter	Value
NSN	5342-01-650-2181
Primary Part Number	JSFL23P6FS
Item Name	Clamp,block
FSC / FSG	5342 / 53 — Hardware, Weapon System
Manufacturer	Umpco, Inc. Dba Umpco Inc
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 1

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

5342-01-666-0184JSFL23P4NB POSSIBLE MATCH

CLAMP,BLOCK

Possible match (shared part number)Ta Aerospace Co Div Ta Aerospace

Cross-Reference Index

Part Number	Manufacturer
JSFL23P6FS PRIMARY	Umpco, Inc. Dba Umpco Inc (USA)
S681-6FS PRIMARY	Umpco, Inc. Dba Umpco Inc (USA)

Reference documents

Reference	Meaning
JSFL23P6FS	1/2 Source control — Government-approved source U.S. Government activity
JSFL23	D/9 Drawing number reference only U.S. Government activity
JSFL23P6FS	3/2 Design control — primary reference U.S. Government activity

Related Parts

5342-01-666-0184POSSIBLE MATCH

CLAMP,BLOCK

JSFL23P4NB

Frequently Asked Questions

What is NSN 5342-01-650-2181?

NSN 5342-01-650-2181 is a Clamp,block, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5342, Hardware, Weapon System. Status: active.

What part numbers are listed for NSN 5342-01-650-2181?

NSN 5342-01-650-2181 has 2 manufacturer part numbers on file: JSFL23P6FS (Umpco, Inc. Dba Umpco Inc), S681-6FS (Umpco, Inc. Dba Umpco Inc).

What NSN replaces 5342-01-650-2181?

1 possible match (shared part number, not a government interchangeability claim): 5342-01-666-0184. Verify interchangeability with system specifications before substitution.

Is NSN 5342-01-650-2181 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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