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6512-61-131-5101 — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6512-61-131-5101: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL, body_style: PLAIN, overall_length: 1.617 INCHES NOMINAL IN, surface_treatment: CADMIUM, width_across_flats: 0.873 INCHES NOMINAL IN, concentric_hole_depth: 1.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-139-6842, 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
6512-61-131-5101
NSN: 4730-01-139-6842
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL
body_stylePLAIN
overall_length1.617 INCHES NOMINAL IN
surface_treatmentCADMIUM
width_across_flats0.873 INCHES NOMINAL IN
concentric_hole_depth1.120 INCHES NOMINAL IN
first_end_thread_class3A A
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.250 INCHES NOMINAL IN
wrenching_feature_height0.317 INCHES NOMINAL IN
first_end_connection_typeTHREADED EXTERNAL TUBE
first_end_style_designatorPLAIN
NSN4730-01-139-6842
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6512-61-131-5101 · 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
•
FIRST END THREAD SERIES DESIGNATOR: UNF
•
WIDTH ACROSS FLATS: 0.873 INCHES NOMINAL IN
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.720 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-STD-865 MIL STD SINGLE TREATMENT RESPONSE
•
BODY STYLE: PLAIN
•
FIRST END THREAD CLASS: 3A A
•
FIRST END STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.873 INCHES NOMINAL IN
FIRST END THREAD DIRECTIONRIGHT-HAND
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.720 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-865 MIL STD SINGLE TREATMENT RESPONSE
BODY STYLEPLAIN
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORPLAIN
CONCENTRIC HOLE DEPTH1.120 INCHES NOMINAL IN
WRENCHING FEATURE HEIGHT0.317 INCHES NOMINAL IN
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 1
65126-11355-101Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6512-61-131-5101?
6512-61-131-5101 is a BOLT,FLUID PASSAGE.
What parts can replace 6512-61-131-5101?
There is 1 known substitute for 6512-61-131-5101: 65126-11355-101. Substitute compatibility should be verified for your specific system.
What is the NSN for 6512-61-131-5101?
6512-61-131-5101 is cataloged in the U.S. Government catalog under NSN 4730-01-139-6842. 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.