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28839 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

28839: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include width: 2.280 INCHES NOMINAL IN, length: 4.730 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061, inside_width: 2.000 INCHES NOMINAL IN, special_features: 2 BOLT HOLES LOCATED ON TOP OF COVER, inside_corner_radius: 0.075 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-916-5036, 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
28839
NSN: 4730-00-916-5036
NIINs: 009165036, 010533163
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 16004 — DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC (USA)
SPECIFICATIONS
width2.280 INCHES NOMINAL IN
length4.730 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061
inside_width2.000 INCHES NOMINAL IN
special_features2 BOLT HOLES LOCATED ON TOP OF COVER
inside_corner_radius0.075 INCHES NOMINAL IN
peripheral_shape_styleBAND TYPE
end_item_identificationF-16A/B AIRCRAFT A
first_recess_inside_height1.335 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE OR RECTANGULAR RECESS
NSN4730-00-916-5036
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 28839 · 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
•
FURNISHED ITEMS AND QUANTITY: 2 TUBE COUPLING NUT W/SLEEVE AND 1 BULKHEAD NUT
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.891 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: FLARELESS W/ BULKHEAD THREADS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.438 INCHES CENTER BULKHEAD IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING NUT W/SLEEVE AND 1 BULKHEAD NUT
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.891 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORFLARELESS W/ BULKHEAD THREADS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.438 INCHES CENTER BULKHEAD IN
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SEAT ANGLE12.0 DEGREES ALL ENDS
SPECIFICATION/STANDARD DATA81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND T96906-MS518212 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUBSTITUTES & CROSS-REFERENCES 7
J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
4WBUSSReference document
Same NSN cross-reference
Reference document — Secondary reference
1785053Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-18866Reference document
Same NSN cross-reference
Reference document — Identification reference
MIL-F-18866Reference document
Same NSN cross-reference
Reference document — Secondary reference
4WU-SSReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28839?
28839 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 28839?
There are 7 known substitutes for 28839: J514, 4WBUSS, 1785053 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28839?
28839 is cataloged in the U.S. Government catalog under NSN 4730-00-916-5036. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.