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AS4875 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS4875: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304, body_style: STEPPED, overall_length: 2.250 INCHES NOMINAL IN, width_across_flats: 1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN, first_end_seat_angle: 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM, concentric_hole_depth: 1.938 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-006-9373, 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
AS4875
NSN: 4730-00-006-9373
NIINs: 000069373, 000531380, 000574553, 000574554, 000575556, 000576654, 000576733, 000602858, 000604166, 000605754, 000607078, 000614064, 000641824, 000674438, 001348892, 001869500, 001869518, 001888016, 001888026, 001888034, 001981922, 001982162, 002028678, 002028769, 002028820, 002028821, 002028824, 002028825, 002028826, 002028827, 002028828, 002032941, 002033137, 002036943, 002037252, 002037458, 002037463, 002040661, 002233964, 002259757, 002277952, 002311317, 002311330, 002311331, 002311332, 002325467, 002470519, 002740936, 002771921, 002771923, 002772457, 002772458, 002772459, 002772460, 002772461, 002772462, 002774746, 002774752, 002775022, 002775026, 002775029, 002775056, 002775075, 002775113, 002775151, 002775157, 002776294, 002776431, 002776455, 002777098, 002777099, 002777101, 002780363, 002780364, 002780373, 002780374, 002780375, 002780377, 002780378, 002780380, 002780381, 002780382, 002780383, 002782779, 002782781, 002782782, 002782784, 002782787, 002782792, 002783682, 002783697, 002785024, 002785025, 002785027, 002785028, 002785029, 002786157, 002786158, 002787711, 002788465, 002788466, 002788468, 002788469, 002788470, 002788865, 002788866, 002788867, 002788868, 002788869, 002788872, 002789307, 002789316, 002789321, 002789443, 002871135, 002888083, 002890786, 002890788, 002890789, 002890790, 002893103, 002895437, 002895974, 002896015, 002896016, 002896021, 002896098, 003227037, 003470519, 003511741, 004059738, 004076551, 004105503, 004105531, 004613737, 004739935, 004754152, 005177912, 005290770, 005292207, 005386741, 005406141, 005548788, 005551407, 005551859, 005552585, 005558054, 005559357, 005802130, 005802859, 005806130, 005806172, 005850424, 005856542, 005857786, 005858343, 005858528, 005858587, 005858712, 005858715, 005950363, 005950364, 005951733, 005953943, 006182949, 006189033, 006307104, 006400618, 006400620, 006405052, 006405053, 006405054, 006405095, 006631393, 006844720, 006845064, 006846917, 006999488, 007172246, 007200048, 007200216, 007200224, 007200238, 007200243, 007200271, 007200692, 007200862, 007201801, 007225558, 007250052, 007252825, 007295875, 007529869, 007529870, 007561910, 007789882, 007825487, 007935278, 008041900, 008047942, 008050680, 008065903, 008145109, 008150292, 008152011, 008218034, 008271032, 008273009, 008274464, 008354494, 008359308, 008362369, 008366007, 008396336, 008422736, 008445959, 008512559, 008516623, 008516624, 008516627, 008892262, 008925933, 008953498, 008953504, 009175891, 009225143, 009228352, 009290594, 009290596, 009290599, 009290600, 009290601, 009290602, 009290603, 009290605, 009290606, 009293404, 009293410, 009382928, 009431586, 009627647, 009881119, 009903313, 009933548, 010327432, 010348221, 010483513, 010546029, 010872093, 010959464, 011051246, 011140045, 011419672, 011617780, 011617786, 011685135, 012551230, 012791520, 013052153, 013304556, 013965026, 014169642, 014449472, 014570032, 015269037, 015274958, 015591827, 015780739, 016799090, 016799105
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 304
body_styleSTEPPED
overall_length2.250 INCHES NOMINAL IN
width_across_flats1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN
first_end_seat_angle40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM
concentric_hole_depth1.938 INCHES NOMINAL IN
first_end_thread_class3A A
first_end_thread_length0.594 INCHES NOMINAL IN
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.484 INCHES NOMINAL IN
wrenching_feature_height0.281 INCHES NOMINAL IN
first_end_connection_typeTHREADED EXTERNAL TUBE
NSN4730-00-006-9373
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4875 · 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: UNIFIED NATIONAL JOINT FINE (UNJF)
•
WIDTH ACROSS FLATS: 0.684 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 1.172 INCHES NOMINAL IN
•
BODY STYLE: PLAIN
•
FIRST END THREAD CLASS: 3A A
•
FIRST END THREAD QUANTITY PER INCH: 20
•
FIRST END STYLE DESIGNATOR: FLARED
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH ACROSS FLATS0.684 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN
FIRST END THREAD DIRECTIONRIGHT-HAND
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER1.172 INCHES NOMINAL IN
BODY STYLEPLAIN
FIRST END THREAD CLASS3A A
FIRST END THREAD QUANTITY PER INCH20
FIRST END STYLE DESIGNATORFLARED
CONCENTRIC HOLE DEPTH1.140 INCHES MINIMUM AND 1.171 INCHES MAXIMUM IN
WRENCHING FEATURE HEIGHT0.203 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 5
AS5161Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN775-4JReference document
Same NSN cross-reference
Reference document — Secondary reference
AS5161J04Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS4875Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS5161BReference document
Same NSN cross-reference
Reference document — Secondary reference
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 AS4875?
AS4875 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS4875?
There are 5 known substitutes for AS4875: AS5161, AN775-4J, AS5161J04 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS4875?
AS4875 is cataloged in the U.S. Government catalog under NSN 4730-00-006-9373. This indicates validated use in U.S. government and defense supply chains.
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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.