PartsTable
Technical Data Sheet
FF-T-91 TY1FM1CL2 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The TURNBUCKLE BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: ROUND OPEN BODY, body_length: 7.124 INCHES MINIMUM IN, thread_class: 2B BODY, surface_treatment: ZINC OVERALL, nominal_thread_size: 0.375 INCHES BODY IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-179-9250, 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
FF-T-91 TY1FM1CL2
NSN: 5340-00-179-9250
FSC: 5340
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleROUND OPEN BODY
body_length7.124 INCHES MINIMUM IN
thread_class2B BODY
surface_treatmentZINC OVERALL
nominal_thread_size0.375 INCHES BODY IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) BODY
nondefinitive_spec/std_data1 TYPE AND 1 FORM AND 2 CLASS
surface_treatment_document_and_classificationASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5340-00-179-9250
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: FF-T-91 TY1FM1CL2 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD CLASS: 2B BODY
MATERIAL: STEEL OVERALL
SURFACE TREATMENT: ZINC OVERALL
BODY LENGTH: 7.124 INCHES MINIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 1 FORM AND 2 CLASS
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) BODY
BODY STYLE: ROUND OPEN BODY
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B BODY
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
BODY LENGTH7.124 INCHES MINIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 FORM AND 2 CLASS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) BODY
BODY STYLEROUND OPEN BODY
NOMINAL THREAD SIZE0.375 INCHES BODY IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
ASTM F 1145-5Upgraded Successor
successor cross-reference
successor
FF-T-791Upgraded Successor
successor cross-reference
successor
11157-1-64Upgraded Successor
successor cross-reference
successor
MS27950-7Upgraded Successor
successor cross-reference
successor
FFT791-TY1-FM1-CL8-5/16X4 1/2Upgraded Successor
successor cross-reference
successor
HG-227-5/16X4 1/2Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-T-91 TY1FM1CL2?
FF-T-91 TY1FM1CL2 is a TURNBUCKLE BODY.
What parts can replace FF-T-91 TY1FM1CL2?
There are 16 known substitutes for FF-T-91 TY1FM1CL2: ASTM F 1145-5, FF-T-791, 11157-1-64 and 13 more. Substitute compatibility should be verified for your specific system.
Is FF-T-91 TY1FM1CL2 still available?
FF-T-91 TY1FM1CL2 is currently cancelled.
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