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Technical Data Sheet
PartsTable / COMPONENT / 611-1 1-2
611-1 1-2 ✓ 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 BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING AND PLASTIC OVERALL, leg_length: 0.880 INCHES MINIMUM AND 0.940 INCHES MAXIMUM ALL ENDS IN, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, hardness_rating: 56.0 ROCKWELL C MINIMUM INTERNAL SURFACES, connection_style: PLAIN (TUBE) ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-263-6526, 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
611-1 1-2
NSN: 4730-00-263-6526
FSC: 4730
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING AND PLASTIC OVERALL
leg_length0.880 INCHES MINIMUM AND 0.940 INCHES MAXIMUM ALL ENDS IN
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
hardness_rating56.0 ROCKWELL C MINIMUM INTERNAL SURFACES
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorWITH INSERT AND/OR LINER
inner_member_width0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
outer_member_width0.2140 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
fsc_application_dataANTENNAS,WAVEGUIDES,AND RELATED EQUIP.
outer_member_outside_diameter0.7495 INCHES MINIMUM AND 7.5000 INCHES MAXIMUM IN
material_document_and_classificationAMS5640 FED SPEC 1ST MATERIAL RESPONSE AND AMS5630 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NSN4730-00-263-6526
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 611-1 1-2 · 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 21
MS35929-2Interchangeable
interchangeable cross-reference
interchangeable
3146549-3Interchangeable
interchangeable cross-reference
interchangeable
AN191Interchangeable
interchangeable cross-reference
interchangeable
6329Interchangeable
interchangeable cross-reference
interchangeable
9611-1-1/8Interchangeable
interchangeable cross-reference
interchangeable
SAC498Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 611-1 1-2?
611-1 1-2 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace 611-1 1-2?
There are 21 known substitutes for 611-1 1-2: MS35929-2, 3146549-3, AN191 and 18 more. Substitute compatibility should be verified for your specific system.
Is 611-1 1-2 still available?
611-1 1-2 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026