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Technical Data Sheet
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7072720 — Technical Data Sheet

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— · 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

LINE ASSY AIR TORPE TORPEDO TUBE. Key specifications include material: NICKEL ALLOY AND COPPER ALLOY, overall_width: 0.750 INCHES NOMINAL IN, overall_length: 1.910 INCHES NOMINAL IN, overall_diameter: 0.475 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN, surface_treatment: ZINC, unpackaged_unit_width: 0.980 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 4730-01-494-8974, 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
7072720
NSN: 4730-01-494-8974
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY AND COPPER ALLOY
overall_width0.750 INCHES NOMINAL IN
overall_length1.910 INCHES NOMINAL IN
overall_diameter0.475 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
special_featuresSTOWAGE COUPLING 1ST END HAS MALE QUICK DISCONNECT WHILE 2ND END HAS .375-16 UNC THREADS FOR MOUNTING TO SHELL ASSEMBLY; LANYARD ATTACHES CAP TO COUPLING
surface_treatmentZINC
unpackaged_unit_width0.980 INCHES NOMINAL IN
end_item_identificationSHIP, SSN
quick_disconnect_methodSPRING PUSH-PULL
supply_items_and_quantities4730-01-494-8974 CAP 1; 1045-01-494-9296 STOWAGE COUPLING 1; 4010-01-308-5097 WIRE 1; 4030-01-088-2952 CRIMP SLEEVE 2
thread_size_and_series/type_designator0.375-16 UNIFIED NATIONAL COARSE (UNC)
general_characteristics_item_descriptionMAKE FROM 36-01-7816-81348/QQ-N-281 CLASS A FORM 1 HF 1.000 ROUND ROD
NSN4730-01-494-8974
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7072720 · 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: STEEL BODY
•
UNPACKAGED UNIT WIDTH: 0.980 INCHES NOMINAL IN
•
QUICK DISCONNECT METHOD: SPRING PUSH-PULL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.910 INCHES NOMINAL IN
MATERIALSTEEL BODY
PART NAME ASSIGNED BY CONTROLLING AGENCYCOUPLING Q-DISC SOCKET
SPECIAL FEATURES0.094 IN. DIA HOLE DRILLED THRU 0.79 IN. FORM SMALLER END FOR WIRE ROPE; SMALLER END HAS 2 WRENCH FLATS; SMALLER END DIA 0.690 IN. IN
END ITEM IDENTIFICATIONVIRGINIA CLASS NSSN; NHA TORPEDO TUBE SHELL ASSEMBLY.
UNPACKAGED UNIT WIDTH0.980 INCHES NOMINAL IN
QUICK DISCONNECT METHODSPRING PUSH-PULL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
751-7108126Interchangeable
interchangeable cross-reference
interchangeable
751-7072720-2Interchangeable
interchangeable cross-reference
interchangeable
751-7108125Interchangeable
interchangeable cross-reference
interchangeable
7072720-A1Interchangeable
interchangeable cross-reference
interchangeable
H821-0701-59Interchangeable
interchangeable cross-reference
interchangeable
7072720Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7072720?
7072720 is a LINE ASSY AIR TORPE TORPEDO TUBE.
What parts can replace 7072720?
There are 7 known substitutes for 7072720: 751-7108126, 751-7072720-2, 751-7108125 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7072720?
7072720 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-494-8974. 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: August 2026