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Technical Data Sheet
PartsTable / COMPONENT / NAS844-8
NAS844-8 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, POLYETHYLENE (PP), design_type: FRICTION, special_features: COLOR:RED, inside_diameter_length: 0.88 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: CAP,TUBING,PROTECTIVE, DUST AND MOISTURE SEAL, tube_outside_diameter_for_which_designed: 0.437 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-060-6484, 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
NAS844-8
NSN: 5340-00-060-6484
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
design_typeFRICTION
special_featuresCOLOR:RED
inside_diameter_length0.88 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyCAP,TUBING,PROTECTIVE, DUST AND MOISTURE SEAL
tube_outside_diameter_for_which_designed0.437 INCHES NOMINAL IN
opening_inside_diameter_for_which_designed0.438 INCHES NOMINAL IN
NSN5340-00-060-6484
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS844-8 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
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.438 INCHES NOMINAL IN
•
DESIGN TYPE: FRICTION
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
INSIDE DIAMETER LENGTH: 0.88 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.437 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.438 INCHES NOMINAL IN
SPECIAL FEATURESCOLOR:RED
DESIGN TYPEFRICTION
MATERIALPLASTIC, POLYETHYLENE (PP)
INSIDE DIAMETER LENGTH0.88 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.437 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP,TUBING,PROTECTIVE, DUST AND MOISTURE SEAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
NAS847Upgraded Successor
successor cross-reference
successor
MIL-C-5501/7Upgraded Successor
successor cross-reference
successor
M5501/7-F24Upgraded Successor
successor cross-reference
successor
AEP1543-2Upgraded Successor
successor cross-reference
successor
EC14Upgraded Successor
successor cross-reference
successor
36B505139P4Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS844-8?
NAS844-8 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace NAS844-8?
There are 10 known substitutes for NAS844-8: NAS847, MIL-C-5501/7, M5501/7-F24 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS844-8?
NAS844-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-060-6484. 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