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Technical Data Sheet
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1618510 ✓ 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: COPPER ALLOY OVERALL, leg_length: 0.812 INCHES NOMINAL ALL ENDS IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, surface_treatment: CADMIUM OVERALL, nominal_thread_size: 0.375 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-256-4211, 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
1618510
NSN: 4730-00-256-4211
FSC: 4730
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length0.812 INCHES NOMINAL ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.375 INCHES ALL ENDS IN
end_item_identificationMRAP - COUGAR CAT1 A1; MRAP - COUGAR ISS 1.0; MRAP - M-ATV UI
thread_series_designatorANPT ALL ENDS
specification/standard_data88044-AN918 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE
NSN4730-00-256-4211
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1618510 · 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
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
SPECIFICATION/STANDARD DATA: 88044-AN918 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMRAP - COUGAR CAT1 A1; MRAP - COUGAR ISS 1.0; MRAP - M-ATV UI
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
SPECIFICATION/STANDARD DATA88044-AN918 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE
MATERIALCOPPER ALLOY OVERALL
LEG LENGTH0.812 INCHES NOMINAL ALL ENDS IN
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
102CInterchangeable
interchangeable cross-reference
interchangeable
1164605Interchangeable
interchangeable cross-reference
interchangeable
GGG-S-65Interchangeable
interchangeable cross-reference
interchangeable
5110-00-293-0090Interchangeable
interchangeable cross-reference
interchangeable
20261-3Interchangeable
interchangeable cross-reference
interchangeable
102806Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1618510?
1618510 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 1618510?
There are 25 known substitutes for 1618510: 102C, 1164605, GGG-S-65 and 22 more. Substitute compatibility should be verified for your specific system.
Is 1618510 still available?
1618510 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