PartsTable
Technical Data Sheet
Download PDF

940189 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

940189: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: COPPER ALLOY 240, overall_width: 0.775 INCHES NOMINAL IN, special_features: DESIGNED FOR FITTING SIZE -10 AND -12, base_flange_width: 0.4375 INCHES NOMINAL IN, basic_shape_style: CHANNEL, base_flange_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-578-6748, 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
940189
NSN: 5340-01-578-6748
NIINs: 015786748, 015989115
FSC: 5340 — Hardware, Commercial
CAGE: 87373 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HOSE PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 240
overall_width0.775 INCHES NOMINAL IN
special_featuresDESIGNED FOR FITTING SIZE -10 AND -12
base_flange_width0.4375 INCHES NOMINAL IN
basic_shape_styleCHANNEL
base_flange_thickness0.125 INCHES NOMINAL IN
end_item_identificationMRAP; M-ATV
left_side_flange_height1.000 INCHES NOMINAL IN
right_side_flange_height1.000 INCHES NOMINAL IN
left_side_flange_thickness0.125 INCHES NOMINAL IN
left_side_top_flange_width0.4375 INCHES NOMINAL IN
right_side_flange_thickness0.125 INCHES NOMINAL IN
NSN5340-01-578-6748
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 940189 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESDESIGNED FOR FITTING SIZE -10 AND -12
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP, CHARGE PORT
END ITEM IDENTIFICATIONMRAP; M-ATV
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 940189?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 940189?
940189 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 940189?
940189 is cataloged in the U.S. Government catalog under NSN 5340-01-578-6748. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 940189

✓ 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.