Support Block5340-01-526-6971

NSN 5340-01-526-6971 · NIIN 015266971 · Part number C49669

O T S I · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 05825

Government record, cited

NSN 5340-01-526-6971 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-526-6971. Manufacturer of record part number: C49669.

Also searched as 5340-01-526-6971 · 5340015266971 · NIIN 015266971 · 01-526-6971 · FSC 5340 Hardware, Commercial · CAGE 05825 · C49669

Nearby stock numbers ← 5340-01-526-6954 Cap, Protective, Dust and Moisture · 5340-01-526-6990 Slide Section, Drawer, Extension →

Features

Support Block — FSC 5340
Surface Treatment: CADMIUM
Thread Size and Series/type Designator: 0.250-20 UNIFIED NATIONAL COARSE (UNC)
1 manufacturer part number on file
Manufacturer of record: O T S I

Identification

NSN: 5340-01-526-6971
NIIN: 015266971
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: C49669
Manufacturer: O T S I

General Description

The Support Block, cataloged under National Stock Number 5340-01-526-6971, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is O T S I. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications

Parameter	Value
NSN	5340-01-526-6971
Primary Part Number	C49669
Item Name	Support Block
FSC / FSG	5340 / 53 — Hardware, Commercial
Manufacturer	O T S I
Status	ACTIVE
Surface Treatment	CADMIUM
Thread Size and Series/type Designator	0.250-20 UNIFIED NATIONAL COARSE (UNC)

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

Cross-Reference Index

Part Number	Manufacturer
C49669 PRIMARY	O T S I (USA)

No interchangeability data on file.

Other items in FSC 5340 — Hardware, Commercial

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

5340-00-000-0068

COVER,ACCESS

5340-00-000-0132

SEAT,HELICAL COMPRESSION SPRING

5340-00-000-8150

5340-00-000-8150 · Item name not on file

5340-00-001-1251

5340-00-001-1251 · Item name not on file

5340-00-001-1264

STRAP,WEBBING

5340-00-001-1265

STRAP,WEBBING

5340-00-001-1266

STRAP,WEBBING

5340-00-001-1275

HANDLE,DOOR

Frequently Asked Questions

What is NSN 5340-01-526-6971?

NSN 5340-01-526-6971 is a Support Block, manufactured by O T S I, classified under FSC 5340, Hardware, Commercial. Status: active.

What part numbers are listed for NSN 5340-01-526-6971?

NSN 5340-01-526-6971 has 1 manufacturer part number on file: C49669 (O T S I).

What are the specifications of C49669?

Key specifications for C49669: Overall Height: 1.500 INCHES NOMINAL IN; Overall Length: 4.000 INCHES NOMINAL IN; Overall Width: 1.750 INCHES NOMINAL IN; Special Features: BLOCK WITH 0.876 INCH DIAMETER BORE THRU (1.500 IN), HAVING A KEYWAY OF 0.250 IN DIAMETER BORED TO CENTER; ALSO HAVING 2 0.531 INCH DIAMETER BORES THRU (1.750 IN) WITH FINAL .750 INCH BORE BEING 0.781 INCH DIAMETER SPACED EVENLY AT 2.750 INCHES APART IN. 2 specifications are documented in the U.S. Government catalog.

Is NSN 5340-01-526-6971 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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