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SAE J512 4-4 010101B — Technical Data Sheet

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— · 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

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 45.0 DEGREES ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, style_designator: FLARED W/ CENTER WRENCHING FACILITY. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-277-6988, 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
SAE J512 4-4 010101B
NSN: 4730-00-277-6988
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle45.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.438 INCHES ALL ENDS IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.170 INCHES IN
end_item_identificationGRUMMAN A-10 ACFT
thread_series_designatorUNF ALL ENDS
nondefinitive_spec/std_data1B FIGURE
NSN4730-00-277-6988
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SAE J512 4-4 010101B · 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
•
SEAT ANGLE: 45.0 DEGREES ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
MATERIAL: COPPER ALLOY OVERALL
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.170 INCHES IN
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS
SEAT ANGLE45.0 DEGREES ALL ENDS
END ITEM IDENTIFICATIONGRUMMAN A-10 ACFT
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
MATERIALCOPPER ALLOY OVERALL
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OVERALL LENGTH1.170 INCHES IN
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
THREAD CLASS2A ALL ENDS A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
11-4785InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2708 1-2 4AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
EE-49756InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
11-0122InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
U24InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
U24Y500InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SAE J512 4-4 010101B?
SAE J512 4-4 010101B is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace SAE J512 4-4 010101B?
There are 32 known substitutes for SAE J512 4-4 010101B: 11-4785, 2708 1-2 4A, EE-49756 and 29 more. Substitute compatibility should be verified for your specific system.
Is SAE J512 4-4 010101B still available?
SAE J512 4-4 010101B 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: October 2026