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Technical Data Sheet
40845-1 ITEM NO 9 ✓ 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-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, POLYETHYLENE (PP), special_features: LOW DENSITY POLYETHYLENE PLASTIC; COLOR IS BLACK; CAPLUG BP-1 3/8, end_item_identification: NAVY CODE 99A080014, open_end_inside_diameter: 1.430 INCHES NOMINAL IN, closed_end_overall_diameter: 1.730 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: BUTTON PLUG W/RECESSED TYPE HEAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-565-3920, 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
40845-1 ITEM NO 9
NSN: 5340-01-565-3920
FSC: 5340
CAGE: 55198 — AQUAFINE CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
special_featuresLOW DENSITY POLYETHYLENE PLASTIC; COLOR IS BLACK; CAPLUG BP-1 3/8
end_item_identificationNAVY CODE 99A080014
open_end_inside_diameter1.430 INCHES NOMINAL IN
closed_end_overall_diameter1.730 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyBUTTON PLUG W/RECESSED TYPE HEAD
NSN5340-01-565-3920
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40845-1 ITEM NO 9 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
CLOSED END OVERALL DIAMETER: 1.730 INCHES NOMINAL IN
OPEN END INSIDE DIAMETER: 1.430 INCHES NOMINAL IN
MATERIAL: PLASTIC, POLYETHYLENE (PP)
TECHNICAL CHARACTERISTICS (FLIS)
CLOSED END OVERALL DIAMETER1.730 INCHES NOMINAL IN
OPEN END INSIDE DIAMETER1.430 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBUTTON PLUG W/RECESSED TYPE HEAD
SPECIAL FEATURESLOW DENSITY POLYETHYLENE PLASTIC; COLOR IS BLACK; CAPLUG BP-1 3/8
MATERIALPLASTIC, POLYETHYLENE (PP)
END ITEM IDENTIFICATIONNAVY CODE 99A080014
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
40276Interchangeable
interchangeable cross-reference
interchangeable
1841 2-1/2X1/32X7/8Interchangeable
interchangeable cross-reference
interchangeable
59-10001Interchangeable
interchangeable cross-reference
interchangeable
326-1Interchangeable
interchangeable cross-reference
interchangeable
499-037-026Interchangeable
interchangeable cross-reference
interchangeable
712443-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40845-1 ITEM NO 9?
40845-1 ITEM NO 9 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What parts can replace 40845-1 ITEM NO 9?
There are 10 known substitutes for 40845-1 ITEM NO 9: 40276, 1841 2-1/2X1/32X7/8, 59-10001 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40845-1 ITEM NO 9?
40845-1 ITEM NO 9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-565-3920. This indicates validated use in U.S. government and defense supply chains.
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