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Technical Data Sheet
PartsTable / COMPONENT / RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4

RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SHACKLE is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL COMP 1020, end_condition: PLAIN, inside_length: 5.500 INCHES MINIMUM AND 6.000 INCHES MAXIMUM IN, opening_width: 2.750 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN, style_designator: CHAIN, breaking_strength: 40000.0 HARNESS GROUP 3. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4030-00-377-1233, 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
RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4
NSN: 4030-00-377-1233
FSC: 4030
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OR STEEL COMP 1020
end_conditionPLAIN
inside_length5.500 INCHES MINIMUM AND 6.000 INCHES MAXIMUM IN
opening_width2.750 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
style_designatorCHAIN
breaking_strength40000.0 HARNESS GROUP 3
material_diameter1.660 INCHES MINIMUM IN
surface_treatmentZINC OR ZINC AND CHROMATE
closure_head_styleFLAT
locking_device_typeCOTTER PIN
nondefinitive_spec/std_data2 TYPE AND B GRADE AND 1 CLASS
material_document_and_classificationASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE
NSN4030-00-377-1233
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHACKLE TITLE COMPONENT PN RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4 MFR SHACKLE
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A153 ASSN STD 1ST TREATMENT RESPONSE OR QQ-Z-325,CL 2 FED SPEC 2ND TREATMENT RESPONSE AND QQ-Z-325,CL 2 FED SPEC 3RD TREATMENT RESPONSE
•
MATERIAL: STEEL OR STEEL COMP 1020
•
LOCKING DEVICE TYPE: COTTER PIN
•
END CONDITION: PLAIN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND B GRADE AND 1 CLASS
•
SURFACE TREATMENT: ZINC OR ZINC AND CHROMATE
•
BREAKING STRENGTH: 40000.0 HARNESS GROUP 3
•
CLOSURE HEAD STYLE: FLAT
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A153 ASSN STD 1ST TREATMENT RESPONSE OR QQ-Z-325,CL 2 FED SPEC 2ND TREATMENT RESPONSE AND QQ-Z-325,CL 2 FED SPEC 3RD TREATMENT RESPONSE
MATERIALSTEEL OR STEEL COMP 1020
LOCKING DEVICE TYPECOTTER PIN
END CONDITIONPLAIN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND B GRADE AND 1 CLASS
SURFACE TREATMENTZINC OR ZINC AND CHROMATE
BREAKING STRENGTH40000.0 HARNESS GROUP 3
CLOSURE HEAD STYLEFLAT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE
STYLE DESIGNATORCHAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MILS24214InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RR-C-271, TY IVB,CL1,GRA, 7/8 INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RR-C-271FInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F271-A2-Z18InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RR-C-271InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F271-C1-1AZ18InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4?
RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4 is a SHACKLE.
What parts can replace RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4?
There are 15 known substitutes for RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4: MILS24214, RR-C-271, TY IVB,CL1,GRA, 7/8 IN, RR-C-271F and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4?
RRC271,TY-IVB,GR-B,CL1,SZ 1-3/4 is cataloged in the Federal Logistics Information System under NSN 4030-00-377-1233. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: October 2026