PartsTable
Technical Data Sheet
PartsTable / COMPONENT / M83798/7-20
M83798/7-20 ✓ 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 M83798/7-20 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-221-5558, 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
M83798/7-20
NSN: 4730-01-221-5558
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM83798/7-20
NSN4730-01-221-5558
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M83798/7-20 · 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
•
NOMINAL THICKNESS: 0.234 INCHES FIRST END IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 T851 FED SPEC SINGLE MATERIAL RESPONSE SOCKET
•
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NONDEFINITIVE SPEC/STD DATA: 1-1/4 SIZE
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-83798 GOVERNMENT SPECIFICATION
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 1.125 INCHES SECOND END IN
•
MATERIAL: ALUMINUM ALLOY 6061 NIPPLE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THICKNESS0.234 INCHES FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 T851 FED SPEC SINGLE MATERIAL RESPONSE SOCKET
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 T6 FED SPEC SINGLE MATERIAL RESPONSE OR WW-T-700/6 FED SPEC SINGLE MATERIAL RESPONSE NIPPLE
NONDEFINITIVE SPEC/STD DATA1-1/4 SIZE
SPECIFICATION/STANDARD DATA81349-MIL-F-83798 GOVERNMENT SPECIFICATION
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED1.125 INCHES SECOND END IN
MATERIALALUMINUM ALLOY 6061 NIPPLE
MEDIA FOR WHICH DESIGNEDFUEL SINGLE RESPONSE
NOMINAL WIDTH2.188 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
136-3000-24DInterchangeable
interchangeable cross-reference
interchangeable
681-24DInterchangeable
interchangeable cross-reference
interchangeable
8714-24DInterchangeable
interchangeable cross-reference
interchangeable
681-16Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83798/7Interchangeable
interchangeable cross-reference
interchangeable
M83798/7-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy M83798/7-20?
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 M83798/7-20?
M83798/7-20 is a M83798/7-20.
What parts can replace M83798/7-20?
There are 10 known substitutes for M83798/7-20: 136-3000-24D, 681-24D, 8714-24D and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M83798/7-20?
M83798/7-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-221-5558. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — M83798/7-20

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026