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Technical Data Sheet
PartsTable / COMPONENT / 6405-8-8
6405-8-8 ✓ 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 OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN, fastener_length: 1.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-126-9758, 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
6405-8-8
NSN: 4730-01-126-9758
FSC: 4730
CAGE: 57760 — PARKER HANNIFIN CORPORATION DBA HYDRAULIC PUMP/MOTOR DUV DIV HYDRAULIC PUMP DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
thread_class2A A
thread_length1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
fastener_length1.250 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
end_item_identificationMRAP - COUGAR CAT1 A2; MRAP BUFFALO MK2A2; MEDIUM MINE PROTECTED VEHICLE - MMPV; MULTIPLE LAUNCH ROCKET SYSTEM
nominal_thread_diameter0.375 INCHES IN
NSN4730-01-126-9758
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6405-8-8 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
907821Interchangeable
interchangeable cross-reference
interchangeable
S000069Interchangeable
interchangeable cross-reference
interchangeable
91248A626Interchangeable
interchangeable cross-reference
interchangeable
2002347Interchangeable
interchangeable cross-reference
interchangeable
3723-5001G1Interchangeable
interchangeable cross-reference
interchangeable
LT-202-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6405-8-8?
6405-8-8 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 6405-8-8?
There are 17 known substitutes for 6405-8-8: 907821, S000069, 91248A626 and 14 more. Substitute compatibility should be verified for your specific system.
Is 6405-8-8 still available?
6405-8-8 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