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PartsTable / COMPONENT / 1691-B ITEM 5
1691-B ITEM 5 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 836 OVERALL, temp_rating: 160.0 FAHRENHEIT NOMINAL DEGF, end_item_identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS, material_document_and_classification: QQ-C-390B FED SPEC SINGLE MATERIAL RESPONSE OVERALL, maximum_working_pressure_rating_and_service_for_which_designed: 150.0 POUNDS PER SQUARE INCH (PSI) WATER LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-418-4126, 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
1691-B ITEM 5
NSN: 4730-01-418-4126
FSC: 4730
CAGE: 90800 — ROMAC INDUSTRIES, INC. DBA HAYS FLUID CONTROLS DIV HAYS FLUID CONTROLS DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 836 OVERALL
temp_rating160.0 FAHRENHEIT NOMINAL DEGF
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
material_document_and_classificationQQ-C-390B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
maximum_working_pressure_rating_and_service_for_which_designed150.0 POUNDS PER SQUARE INCH (PSI) WATER LBS
NSN4730-01-418-4126
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1691-B ITEM 5 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: COPPER ALLOY 836 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
TEMP RATING: 160.0 FAHRENHEIT NOMINAL DEGF
•
MAXIMUM WORKING PRESSURE RATING AND SERVICE FOR WHICH DESIGNED: 150.0 POUNDS PER SQUARE INCH (PSI) WATER LBS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 836 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TEMP RATING160.0 FAHRENHEIT NOMINAL DEGF
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
MAXIMUM WORKING PRESSURE RATING AND SERVICE FOR WHICH DESIGNED150.0 POUNDS PER SQUARE INCH (PSI) WATER LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
CUR614Interchangeable
interchangeable cross-reference
interchangeable
130EFInterchangeable
interchangeable cross-reference
interchangeable
44Z251D1Interchangeable
interchangeable cross-reference
interchangeable
3062X19Interchangeable
interchangeable cross-reference
interchangeable
EE42051Interchangeable
interchangeable cross-reference
interchangeable
5456081Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1691-B ITEM 5?
1691-B ITEM 5 is a COIL,RADIO FREQUENCY.
What parts can replace 1691-B ITEM 5?
There are 20 known substitutes for 1691-B ITEM 5: CUR614, 130EF, 44Z251D1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1691-B ITEM 5?
1691-B ITEM 5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-418-4126. 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