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6400-04-08 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6400-04-08: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: SHAPE: STRAIGHT; THREAD 1 TYPE: MALE JIC; THREAD 2 TYPE: MALE O-RING, nominal_thread_size: 0.75 INCHES SECOND END IN, media_for_which_designed: HYDRAULIC FLUID SINGLE RESPONSE, thread_quantity_per_inch: 16 SECOND END, part_name_assigned_by_controlling_agency: ADAPTER. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-680-2852, 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
6400-04-08
NSN: 4730-01-680-2852
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0S1H5 — TOMPKINS INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresSHAPE: STRAIGHT; THREAD 1 TYPE: MALE JIC; THREAD 2 TYPE: MALE O-RING
nominal_thread_size0.75 INCHES SECOND END IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_quantity_per_inch16 SECOND END
part_name_assigned_by_controlling_agencyADAPTER
NSN4730-01-680-2852
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6400-04-08 · 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
•
NOMINAL THREAD SIZE: 0.4375 INCHES FIRST END IN
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
•
THREAD QUANTITY PER INCH: 16 SECOND END
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.4375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.75 INCHES SECOND END IN
SPECIAL FEATURESSHAPE: STRAIGHT; THREAD 1 TYPE: MALE JIC; THREAD 2 TYPE: MALE O-RING
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYADAPTER
THREAD QUANTITY PER INCH16 SECOND END
THREAD QUANTITY PER INCH20 FIRST END
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6400-04-08?
6400-04-08 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What is the NSN for 6400-04-08?
6400-04-08 is cataloged in the U.S. Government catalog under NSN 4730-01-680-2852. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.