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Technical Data Sheet
40737-2PC1 ✓ 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

The CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, end_item_identification: 4"PRESSURE REDUCING VALVE, TYPE II, SERIES 250, material_document_and_classification: STM-B16 ASSN STD SINGLE MATERIAL RESPONSE OVERALL, part_name_assigned_by_controlling_agency: CAP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-643-0135, 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
40737-2PC1
NSN: 5340-01-643-0135
FSC: 5340
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
end_item_identification4"PRESSURE REDUCING VALVE, TYPE II, SERIES 250
material_document_and_classificationSTM-B16 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyCAP
NSN5340-01-643-0135
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40737-2PC1 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
MATERIAL: COPPER ALLOY 360 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: STM-B16 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION4"PRESSURE REDUCING VALVE, TYPE II, SERIES 250
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP
MATERIALCOPPER ALLOY 360 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSTM-B16 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
1876-02Interchangeable
interchangeable cross-reference
interchangeable
40737-2Interchangeable
interchangeable cross-reference
interchangeable
40737-2 PC NO 13Interchangeable
interchangeable cross-reference
interchangeable
40737-2 PC NO 11Interchangeable
interchangeable cross-reference
interchangeable
1875-00Interchangeable
interchangeable cross-reference
interchangeable
40737-2 PC NO 18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40737-2PC1?
40737-2PC1 is a CAP,FILLER OPENING.
What parts can replace 40737-2PC1?
There are 21 known substitutes for 40737-2PC1: 1876-02, 40737-2, 40737-2 PC NO 13 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40737-2PC1?
40737-2PC1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-643-0135. This indicates validated use in U.S. government and defense supply chains.
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