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Technical Data Sheet
PartsTable / COMPONENT / 51-1235
51-1235 ✓ 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 COUPLING HALF,SELF-SEALING 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 4730-00-402-9855, 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
51-1235
NSN: 4730-00-402-9855
FSC: 4730
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCORROSION RESISTANT AMS 5504; ROCKWELL HARDNESS C25 TO C33; 2.000 IN. W; 3.460 IN. LG; 0.056 IN. MIN AND 0.068 IN. MAX THICKNESS IN
NSN4730-00-402-9855
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 51-1235 · 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
•
THREAD QUANTITY PER INCH: 12 ALL ENDS12 ALL ENDS
•
MAXIMUM OPERATING TEMP: 149.0 CELSIUS SINGLE RESPONSE149.0 CELSIUS SINGLE RESPONSE DEGC
•
MATING END IDENTIFICATION: AEROQUIP CORP COUPLING HALF,SELF-SEALING,PART NO. AE94060NAEROQUIP CORP COUPLING HALF,SELF-SEALING,PART NO. AE94060N
•
CONNECTION TYPE: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTIONTHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY
•
THREAD CLASS: 3A ALL ENDS3A ALL ENDS A
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL ALL ENDSEXTERNAL SEAT FOR GASKET SEAL ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH12 ALL ENDS12 ALL ENDS
MAXIMUM OPERATING TEMP149.0 CELSIUS SINGLE RESPONSE149.0 CELSIUS SINGLE RESPONSE DEGC
MATING END IDENTIFICATIONAEROQUIP CORP COUPLING HALF,SELF-SEALING,PART NO. AE94060NAEROQUIP CORP COUPLING HALF,SELF-SEALING,PART NO. AE94060N
CONNECTION TYPETHREADED EXTERNAL BOSS FIRST FLUID END CONNECTIONTHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
OVERALL LENGTH4.690 INCHES NOMINAL4.690 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY
THREAD CLASS3A ALL ENDS3A ALL ENDS A
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL ALL ENDSEXTERNAL SEAT FOR GASKET SEAL ALL ENDS
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, WATER BASE SINGLE RESPONSE
FEATURES PROVIDEDSELF-SEALINGSELF-SEALING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AE94060NInterchangeable
interchangeable cross-reference
interchangeable
511235-3Interchangeable
interchangeable cross-reference
interchangeable
51-8135Interchangeable
interchangeable cross-reference
interchangeable
CIDA-A-54271Interchangeable
interchangeable cross-reference
interchangeable
51-1235Interchangeable
interchangeable cross-reference
interchangeable
511235-5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51-1235?
51-1235 is a COUPLING HALF,SELF-SEALING.
What parts can replace 51-1235?
There are 9 known substitutes for 51-1235: AE94060N, 511235-3, 51-8135 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51-1235?
51-1235 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-402-9855. 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