FSC: 6635 — Physical Properties Testing and Inspection
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Tester,material Hardness, cataloged under National Stock Number 6635-01-062-9999, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6635-01-062-9999
Item Name
Tester,material Hardness
FSC / FSG
6635 / 66 — Physical Properties Testing and Inspection
Status
ACTIVE
Indicator Type
VERNIER
Usage Design
EXTERNAL
Indicator Reading Type
MULTIPLE
Test Type
ROCKWELL
Indicator Design
DIRECT READING
Carrying Case
PROVIDED
Installation Design
PORTABLE
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
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
AT1100
5/2Secondary reference
U.S. Government activity
1
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 6635 — Physical Properties Testing and Inspection
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6635-00-000-0133
X-RAY APPARATUS,RADIOGRAPHIC,IND
6635-00-001-1523
FILM,RADIOGRAPHIC
6635-00-001-2317
6635-00-001-2317 · Item name not on file
6635-00-001-2318
6635-00-001-2318 · Item name not on file
6635-00-003-0281
TESTER,TORQUE WRENCH
6635-00-003-0282
CALIBRATOR,TORQUE
6635-00-003-0284
CALIBRATOR,TORQUE
6635-00-003-1193
6635-00-003-1193 · Item name not on file
Frequently Asked Questions
What is NSN 6635-01-062-9999?
NSN 6635-01-062-9999 is a Tester,material Hardness, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
What are the specifications of 6635-01-062-9999?
Key specifications for 6635-01-062-9999: Indicator Type: VERNIER; Usage Design: EXTERNAL; Indicator Reading Type: MULTIPLE; Test Type: ROCKWELL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 6635-01-062-9999 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.