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AS4842 ✓ 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 ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 3.375 INCHES MINIMUM AND 3.469 INCHES MAXIMUM ALL ENDS IN, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, operating_pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-009-3379, 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
AS4842
NSN: 4730-00-009-3379
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
flow_angle90.0 DEGREES
leg_length3.375 INCHES MINIMUM AND 3.469 INCHES MAXIMUM ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.250 INCHES ALL ENDS IN
end_item_identificationPITOT STATIC ACCESSORY KIT
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_quantity_per_inchA11.50 ALL ENDS
thread_series_designatorANPT ALL ENDS
nominal_width_across_flats2.156 INCHES CENTER BULKHEAD IN
NSN4730-00-009-3379
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4842 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
•
NOMINAL THREAD SIZE: 1.000 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: ANPT ALL ENDS
•
LEG LENGTH: 1.625 INCHES NOMINAL ALL ENDS IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
SPECIFICATION/STANDARD DATA: 88044-AN918 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORANPT ALL ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
LEG LENGTH1.625 INCHES NOMINAL ALL ENDS IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
SPECIFICATION/STANDARD DATA88044-AN918 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIALSTEEL COMP 316 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AN918-8KInterchangeable
Same NIIN cross-reference
interchangeable
SMA573972-14Interchangeable
Same NIIN cross-reference
interchangeable
MIL-F-5509Interchangeable
Same NIIN cross-reference
interchangeable
J918-8KInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS4842?
AS4842 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace AS4842?
There are 4 known substitutes for AS4842: AN918-8K, SMA573972-14, MIL-F-5509 and 1 more. Substitute compatibility should be verified for your specific system.
Is AS4842 still available?
AS4842 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026