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AS4861 — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS4861: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304, style_designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL), surface_treatment: PASSIVATE, external_thread_size: 1/4, internal_thread_size: 1/8-27, supplementary_features: WORKING PRESSURE3000.0 LBS PSI FOR LIQUID AND GASEOUS OXYGEN; WORKING TEMP 225.0 DEG F LIQUID AND GASEOUS OXYGEN LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-011-9922, 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
AS4861
NSN: 4730-00-011-9922
NIINs: 000119922, 000711671, 001460372, 001940210, 001940211, 001940221, 001940225, 002221820, 002237074, 002775609, 002775611, 003092653, 003666979, 005208934, 005406145, 005406146, 006221617, 008080986, 008125424, 009293399, 009593816, 010169928, 010580151, 012367362, 013061088, 016126471
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 304
style_designatorOUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
surface_treatmentPASSIVATE
external_thread_size1/4
internal_thread_size1/8-27
supplementary_featuresWORKING PRESSURE3000.0 LBS PSI FOR LIQUID AND GASEOUS OXYGEN; WORKING TEMP 225.0 DEG F LIQUID AND GASEOUS OXYGEN LBS
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
material_document_and_classificationFED STD 66, COMP 304 FED STD SINGLE MATERIAL RESPONSE
external_screw_thread_series_designatorANPT
internal_screw_thread_series_designatorANPT
NSN4730-00-011-9922
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4861 · 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
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY MATERIAL
•
SPECIFICATION/STANDARD DATA: 81343-AS4861 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
•
EXTERNAL THREAD SIZE: 1/4-18
•
SURFACE TREATMENT: CADMIUM
TECHNICAL CHARACTERISTICS
INTERNAL SCREW THREAD SERIES DESIGNATORANPT
INTERNAL THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL
SPECIFICATION/STANDARD DATA81343-AS4861 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
EXTERNAL SCREW THREAD SERIES DESIGNATORANPT
EXTERNAL THREAD SIZE1/4-18
SURFACE TREATMENTCADMIUM
END ITEM IDENTIFICATIONHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
INTERNAL THREAD SIZE1/8-27
SUBSTITUTES & CROSS-REFERENCES 7
AS4842Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN912-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
WW-P-460Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
AS4861-01Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS4842Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS4861?
AS4861 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace AS4861?
There are 7 known substitutes for AS4861: AS4842, AN912-1, WW-P-460 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS4861?
AS4861 is cataloged in the U.S. Government catalog under NSN 4730-00-011-9922. This indicates validated use in U.S. government and defense supply chains.
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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.