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Technical Data Sheet

M85049/138-26A — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M85049/138-26A: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, POLYETHYLENE (PP), design_type: THREADED, overall_diameter: 1.031 INCHES NOMINAL IN, inside_diameter_length: 0.549 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, end_item_identification: NSN:2350-01-405-9886, part_name_assigned_by_controlling_agency: CONNECTOR ACCY. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-607-9629, 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
M85049/138-26A
NSN: 5340-01-607-9629
FSC: 5340 — Hardware, Commercial
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
design_typeTHREADED
overall_diameter1.031 INCHES NOMINAL IN
inside_diameter_length0.549 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
end_item_identificationNSN:2350-01-405-9886
part_name_assigned_by_controlling_agencyCONNECTOR ACCY
NSN5340-01-607-9629
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M85049/138-26A MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DESIGN TYPE: THREADED
•
OVERALL DIAMETER: 1.031 INCHES NOMINAL IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
INSIDE DIAMETER LENGTH: 0.549 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER1.031 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCONNECTOR ACCY
END ITEM IDENTIFICATIONNSN:2350-01-405-9886
MATERIALPLASTIC, POLYETHYLENE (PP)
INSIDE DIAMETER LENGTH0.549 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
AS85049/138-26AReference document
Same NSN cross-reference
Reference document — Design control — primary reference
SAE-AS85049/138Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M85049/138-26A?
M85049/138-26A is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace M85049/138-26A?
There are 2 known substitutes for M85049/138-26A: AS85049/138-26A, SAE-AS85049/138. Substitute compatibility should be verified for your specific system.
What is the NSN for M85049/138-26A?
M85049/138-26A is cataloged in the U.S. Government catalog under NSN 5340-01-607-9629. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.