PartsTable TECHNICAL DATA SHEET

NSN 6635-01-672-3531Government record, cited

Reference Standard Set, Physical6635-01-672-3531

NSN 6635-01-672-3531 · NIIN 016723531 · Part number DAF7257A001-013

Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems · FSC 6635 — Physical Properties Testing and Inspection · FSG 66 — Instruments and Laboratory Equipment · CAGE 1W025

Government record, cited

NSN 6635-01-672-3531 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-672-3531. Manufacturer of record part number: DAF7257A001-013.

Also searched as 6635-01-672-3531 · 6635016723531 · NIIN 016723531 · 01-672-3531 · FSC 6635 Physical Properties Testing and Inspection · CAGE 1W025 · DAF7257A001-013 · DAF7257A001

Nearby stock numbers ← 6635-01-672-3528 Reference Standard Set, Physical · 6635-01-672-3647 Strain Gage →

Features

Reference Standard Set,physical — FSC 6635
1 manufacturer part number on file
Manufacturer of record: Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

Identification

NSN: 6635-01-672-3531
NIIN: 016723531
FSC: 6635 — Physical Properties Testing and Inspection
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: DAF7257A001-013
Manufacturer: Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

General Description

The Reference Standard Set,physical, cataloged under National Stock Number 6635-01-672-3531, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Reference Standard Set,physical
FSC / FSG	6635 — Physical Properties Testing and Inspection (FSG 66)
Manufacturers	Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (CAGE 1W025)

Technical Specifications

Parameter	Value
NSN	6635-01-672-3531
Primary Part Number	DAF7257A001-013
Item Name	Reference Standard Set,physical
FSC / FSG	6635 / 66 — Physical Properties Testing and Inspection
Manufacturer	Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 5

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

6635-01-672-3846DAF7257A001-009 POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

Possible match (shared part number)Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

6635-01-672-4333DAF7257A001-003 POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

Possible match (shared part number)Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

6635-01-672-4346DAF7257A001-007 POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

Possible match (shared part number)Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

6635-01-672-4355DAF7257A001-005 POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

Possible match (shared part number)Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

6635-01-673-1096DAF7257A001-021 POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

Possible match (shared part number)Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

Cross-Reference Index

Part Number	Manufacturer
DAF7257A001-013 PRIMARY	Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA)

Reference documents

Reference	Meaning
DAF7257A001	D/9 Drawing number reference only Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems

Related Parts

6635-01-672-3846POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

DAF7257A001-009

6635-01-672-4333POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

DAF7257A001-003

6635-01-672-4346POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

DAF7257A001-007

6635-01-672-4355POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

DAF7257A001-005

6635-01-673-1096POSSIBLE MATCH

REFERENCE STANDARD SET,PHYSICAL

DAF7257A001-021

Frequently Asked Questions

What is NSN 6635-01-672-3531?

NSN 6635-01-672-3531 is a Reference Standard Set,physical, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.

What part numbers are listed for NSN 6635-01-672-3531?

NSN 6635-01-672-3531 has 1 manufacturer part number on file: DAF7257A001-013 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).

What NSN replaces 6635-01-672-3531?

5 possible matches (shared part number, not a government interchangeability claim): 6635-01-672-3846, 6635-01-672-4333, 6635-01-672-4346. Verify interchangeability with system specifications before substitution.

Is NSN 6635-01-672-3531 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.

What is the DEMIL code for NSN 6635-01-672-3531?

NSN 6635-01-672-3531 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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