FSC: 6635 — Physical Properties Testing and Inspection
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Penetrameter Set, cataloged under National Stock Number 6635-00-620-2890, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
Penetrameter Set
FSC / FSG
6635 — Physical Properties Testing and Inspection (FSG 66)
Technical Specifications
Parameter
Value
NSN
6635-00-620-2890
Item Name
Penetrameter Set
FSC / FSG
6635 / 66 — Physical Properties Testing and Inspection
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6635-01-059-2306POSSIBLE MATCH
PENETRAMETER SET
Possible match (shared part number)
4510-01-257-9647PS-1POSSIBLE MATCH
CARTRIDGE UNIT,VALV
Possible match (shared part number)Symmons Industries Inc
6130-01-366-7439PS-1POSSIBLE MATCH
POWER SUPPLY
Possible match (shared part number)Digital Basics Inc
6635-01-370-3908293999POSSIBLE MATCH
PENETRAMETER SET
Possible match (shared part number)Associated X-Ray Corporation
6130-01-372-1208PS1POSSIBLE MATCH
POWER SUPPLY
Possible match (shared part number)Welch Allyn Inc Lamp Div
6130-01-381-0827POSSIBLE MATCH
CHARGER,BATTERY
Possible match (shared part number)
6130-01-413-3922POSSIBLE MATCH
CHARGER,BATTERY
Possible match (shared part number)
6130-01-503-8915PS-1POSSIBLE MATCH
POWER SUPPLY
Possible match (shared part number)9X Media Inc. Dba 9X Media
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
65C273
3/9Design control — primary reference
Olympus Scientific Solutions Technologies Inc.
MILSTD453
4/1Identification reference
U.S. Government activity
PS1
5/9Secondary reference
Obsoleteandreasen Agenturer A/s, Holger
65C273
C/1Advisory reference — outside the item-of-supply concept
Olympus America Inc
Related Parts
6635-01-059-2306POSSIBLE MATCH
PENETRAMETER SET
4510-01-257-9647POSSIBLE MATCH
CARTRIDGE UNIT,VALV
PS-1
6130-01-366-7439POSSIBLE MATCH
POWER SUPPLY
PS-1
6635-01-370-3908POSSIBLE MATCH
PENETRAMETER SET
293999
6130-01-372-1208POSSIBLE MATCH
POWER SUPPLY
PS1
6130-01-381-0827POSSIBLE MATCH
CHARGER,BATTERY
6130-01-413-3922POSSIBLE MATCH
CHARGER,BATTERY
6130-01-503-8915POSSIBLE MATCH
POWER SUPPLY
PS-1
Frequently Asked Questions
What is NSN 6635-00-620-2890?
NSN 6635-00-620-2890 is a Penetrameter Set, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
What NSN replaces 6635-00-620-2890?
8 possible matches (shared part number, not a government interchangeability claim): 6635-01-059-2306, 4510-01-257-9647, 6130-01-366-7439. Verify interchangeability with system specifications before substitution.
Is NSN 6635-00-620-2890 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.