Departure From Cited Document: RR-S-366,PARAGRAPH 3.7.2,COVER
Material: COPPER ALLOY
Identification
NSN: 6635-00-641-3503
NIIN: 006413503
FSC: 6635 — Physical Properties Testing and Inspection
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Cover,test Sieve, cataloged under National Stock Number 6635-00-641-3503, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6635-00-641-3503
Item Name
Cover,test Sieve
FSC / FSG
6635 / 66 — Physical Properties Testing and Inspection
Status
ACTIVE
Overall Diameter
8.000 INCHES NOMINAL IN
Departure From Cited Document
RR-S-366,PARAGRAPH 3.7.2,COVER
Material
COPPER ALLOY
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
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6635-00-641-3582POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-3583POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-3587POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-3589POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-3591POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-3592POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-7350POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-7354POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
6635-00-641-7357POSSIBLE MATCH
SIEVE,TEST
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
RR-S-366
5/9Secondary reference
U.S. Government activity
SSR406C
5/9Secondary reference
U.S. Government activity
ASTM E11
3/1Design control — primary reference
U.S. Government activity
Related Parts
6635-00-641-3582POSSIBLE MATCH
SIEVE,TEST
6635-00-641-3583POSSIBLE MATCH
SIEVE,TEST
6635-00-641-3587POSSIBLE MATCH
SIEVE,TEST
6635-00-641-3589POSSIBLE MATCH
SIEVE,TEST
6635-00-641-3591POSSIBLE MATCH
SIEVE,TEST
6635-00-641-3592POSSIBLE MATCH
SIEVE,TEST
6635-00-641-7350POSSIBLE MATCH
SIEVE,TEST
6635-00-641-7354POSSIBLE MATCH
SIEVE,TEST
6635-00-641-7357POSSIBLE MATCH
SIEVE,TEST
Frequently Asked Questions
What is NSN 6635-00-641-3503?
NSN 6635-00-641-3503 is a Cover,test Sieve, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
What NSN replaces 6635-00-641-3503?
9 possible matches (shared part number, not a government interchangeability claim): 6635-00-641-3582, 6635-00-641-3583, 6635-00-641-3587. Verify interchangeability with system specifications before substitution.
What are the specifications of 6635-00-641-3503?
Key specifications for 6635-00-641-3503: Overall Diameter: 8.000 INCHES NOMINAL IN; Departure From Cited Document: RR-S-366,PARAGRAPH 3.7.2,COVER; Special Features: CYLINDER SHAPE,HANDLE,W/O RING; Material: COPPER ALLOY. 3 specifications are documented in the U.S. Government catalog.
Is NSN 6635-00-641-3503 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.