Nut, Self Locking, Special1377-01-255-1970

NSN 1377-01-255-1970 · NIIN 012551970

FSC 1377 — Cartridge and Propellant Actuated Devices and Components · FSG 13 — Ammunition and Explosives

Government record, cited

Also searched as 1377-01-255-1970 · 1377012551970 · NIIN 012551970 · 01-255-1970 · FSC 1377 Cartridge and Propellant Actuated Devices and Components

Nearby stock numbers ← 1377-01-255-1650 Rocket Motor · 1377-01-255-2382 Cartridge, Aircraft Fire Extingui →

Features

Nut,self Locking,special — FSC 1377
General Characteristics Item Description: ITEM MATERIAL,NICKEL COPPER ALLOY; 1.917 IN. H; 1.812 IN. DIA; 1-14UNS-3B THREAD; COMPONENT OF BOLT HOUSING ASSEMBLY IN EXPLOSIVE BOLT MK 5 MOD 0,PACKAGED 10/UNIT PACK IAW LEVEL C PACKAGING IN
Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY UNIT PACKAGE TYPE

Identification

NSN: 1377-01-255-1970
NIIN: 012551970
FSC: 1377 — Cartridge and Propellant Actuated Devices and Components
FSG: 13 — Ammunition and Explosives

General Description

The Nut,self Locking,special, cataloged under National Stock Number 1377-01-255-1970, is classified within Federal Supply Class 1377 (Cartridge and Propellant Actuated Devices and Components) of the Ammunition and Explosives group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1377-01-255-1970
Item Name	Nut,self Locking,special
FSC / FSG	1377 / 13 — Cartridge and Propellant Actuated Devices and Components
Status	ACTIVE
General Characteristics Item Description	ITEM MATERIAL,NICKEL COPPER ALLOY; 1.917 IN. H; 1.812 IN. DIA; 1-14UNS-3B THREAD; COMPONENT OF BOLT HOUSING ASSEMBLY IN EXPLOSIVE BOLT MK 5 MOD 0,PACKAGED 10/UNIT PACK IAW LEVEL C PACKAGING IN
Reference Number Differentiating Characteristics	AS DIFFERENTIATED BY UNIT PACKAGE TYPE

Lifecycle & Compliance

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

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
2426222	3/1 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

No interchangeability data on file.

Other items in FSC 1377 — Cartridge and Propellant Actuated Devices and Components

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

1377-00-003-6031

1377-00-003-6031 · Item name not on file

1377-00-003-7269

CARTRIDGE,DELAY

1377-00-003-7270

1377-00-003-7270 · Item name not on file

1377-00-004-4229

DETONATOR UNIT ASSY

1377-00-004-4356

1377-00-004-4356 · Item name not on file

1377-00-004-4842

FIRING UNIT,ROCKET

1377-00-004-4896

1377-00-004-4896 · Item name not on file

1377-00-004-9960

CYLINDER BARREL

Frequently Asked Questions

What is NSN 1377-01-255-1970?

NSN 1377-01-255-1970 is a Nut,self Locking,special, classified under FSC 1377, Cartridge and Propellant Actuated Devices and Components. Status: active.

What are the specifications of 1377-01-255-1970?

Key specifications for 1377-01-255-1970: General Characteristics Item Description: ITEM MATERIAL,NICKEL COPPER ALLOY; 1.917 IN. H; 1.812 IN. DIA; 1-14UNS-3B THREAD; COMPONENT OF BOLT HOUSING ASSEMBLY IN EXPLOSIVE BOLT MK 5 MOD 0,PACKAGED 10/UNIT PACK IAW LEVEL C PACKAGING IN; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY UNIT PACKAGE TYPE. 2 specifications are documented in the U.S. Government catalog.

Is NSN 1377-01-255-1970 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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