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Technical Data Sheet
PartsTable / COMPONENT / 20181
20181 ✓ Verified by PartsTable
Clementoni · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

INSULATION BLANKET,CABIN,AIRCRAF. Key specifications include end_item_identification: 1520-01-515-4615, part_name_assigned_by_controlling_agency: SOUND PROOFING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-337-1429, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
20181
NSN: 5305-00-337-1429
FSC: 5305
CAGE: 38508 — DESCO CORP MARSH BELLOFRAM DIV (USA)
SPECIFICATIONS
end_item_identification1520-01-515-4615
part_name_assigned_by_controlling_agencySOUND PROOFING
NSN5305-00-337-1429
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 20181 · Clementoni ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS,1.000 IN. DIA,0.938 IN. LG,1-14 NF,2 THRU HOLES 0.156 IN. DIA IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS,1.000 IN. DIA,0.938 IN. LG,1-14 NF,2 THRU HOLES 0.156 IN. DIA IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
20181Interchangeable
interchangeable cross-reference
interchangeable
406-6543Interchangeable
interchangeable cross-reference
interchangeable
3315342REVAPC181Interchangeable
interchangeable cross-reference
interchangeable
389994PC181Interchangeable
interchangeable cross-reference
interchangeable
AS4-1030-053Interchangeable
interchangeable cross-reference
interchangeable
70400-01250-053Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20181?
20181 is a INSULATION BLANKET,CABIN,AIRCRAF manufactured by Clementoni.
What parts can replace 20181?
There are 10 known substitutes for 20181: 20181, 406-6543, 3315342REVAPC181 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20181?
20181 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-337-1429. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026