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AN775-4 — RETAINER,SEAL,MEERGENCY EXIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AN775-4: RETAINER,SEAL,MEERGENCY EXIT.

The RETAINER,SEAL,MEERGENCY EXIT is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT MODEL C141, general_characteristics_item_description: ALUMINUM ALLOY,AMS4156. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-278-0375, 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
AN775-4
NSN: 4730-00-278-0375
NIINs: 002780375, 007803755
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
end_item_identificationAIRCRAFT MODEL C141
general_characteristics_item_descriptionALUMINUM ALLOY,AMS4156
NSN4730-00-278-0375
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN775-4 · 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
•
FIRST END THREAD SERIES DESIGNATOR: UNF
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.750 INCHES NOMINAL IN
•
BODY STYLE: PLAIN
•
FIRST END THREAD CLASS: 3A A
•
FIRST END STYLE DESIGNATOR: FLARED
•
CONCENTRIC HOLE DEPTH: 1.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
FIRST END THREAD DIRECTIONRIGHT-HAND
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.750 INCHES NOMINAL IN
BODY STYLEPLAIN
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORFLARED
CONCENTRIC HOLE DEPTH1.156 INCHES NOMINAL IN
WRENCHING FEATURE HEIGHT0.188 INCHES NOMINAL IN
FIRST END THREAD LENGTH0.437 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 6
AS4875Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS5161Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
4730002780375Reference document
Same NSN cross-reference
Reference document — Informative reference only
DB775-4CReference document
Same NSN cross-reference
Reference document — Secondary reference
682901Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS5161-04Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN775-4?
AN775-4 is a RETAINER,SEAL,MEERGENCY EXIT.
What parts can replace AN775-4?
There are 6 known substitutes for AN775-4: AS4875, AS5161, 4730002780375 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN775-4?
AN775-4 is cataloged in the U.S. Government catalog under NSN 4730-00-278-0375. This indicates validated use in U.S. government and defense supply chains.
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