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A51K61588-11 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A51K61588-11: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_style: GASKET SEAL (BOSS) SECOND END, special_features: W/CENTER WRENCHING FACILITY,1.000 IN.W ACROSS FLATS IN, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-006-4347, 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
A51K61588-11
NSN: 4730-00-006-4347
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_styleGASKET SEAL (BOSS) SECOND END
special_featuresW/CENTER WRENCHING FACILITY,1.000 IN.W ACROSS FLATS IN
surface_treatmentANODIZE OVERALL
nominal_thread_size1.062 INCHES SECOND END IN
nominal_overall_length2.438 INCHES IN
media_for_which_designedAERONAUTICAL FLUID SECOND RESPONSE
thread_quantity_per_inch12 SECOND END
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
material_document_and_classificationQQ-A-225/6,T851 OR T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-006-4347
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A51K61588-11 · 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-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 2.438 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T851 OR T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.875 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) SECOND END
NOMINAL OVERALL LENGTH2.438 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T851 OR T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END IN
NOMINAL THREAD SIZE0.875 INCHES FIRST END IN
NOMINAL THREAD SIZE1.062 INCHES SECOND END IN
SEAT ANGLE12.0 DEGREES FIRST END
SPECIAL FEATURESW/CENTER WRENCHING FACILITY,1.000 IN.W ACROSS FLATS 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51K61588-11?
A51K61588-11 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What is the NSN for A51K61588-11?
A51K61588-11 is cataloged in the U.S. Government catalog under NSN 4730-00-006-4347. 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.