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R1055-4 — HANDLE,BAIL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R1055-4: HANDLE,BAIL.

The HANDLE,BAIL is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 6061 OVERALL, thread_class: 2A A, inside_length: 4.719 INCHES NOMINAL IN, stock_diameter: 0.281 INCHES NOMINAL IN, mounting_method: THREADED STUD(S), style_designator: EYE HOOK. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-247-0631, 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
R1055-4
NSN: 5340-01-247-0631
FSC: 5340 — Hardware, Commercial
CAGE: 04729 — UNICORP. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 6061 OVERALL
thread_class2A A
inside_length4.719 INCHES NOMINAL IN
stock_diameter0.281 INCHES NOMINAL IN
mounting_methodTHREADED STUD(S)
style_designatorEYE HOOK
surface_treatmentANODIZE OVERALL
nominal_thread_size0.312 INCHES IN
mounting_facility_length1.187 INCHES NOMINAL IN
thread_series_designatorUNF
mounting_facility_quantity2
material_document_and_classificationQQ-A-200/9,T5 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NSN5340-01-247-0631
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R1055-4 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
•
MOUNTING FACILITY QUANTITY: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
INSIDE LENGTH: 4.719 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN
•
MOUNTING FACILITY LENGTH: 1.187 INCHES NOMINAL IN
•
MOUNTING METHOD: THREADED STUD(S)
•
STYLE DESIGNATOR: EYE HOOK
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/9,T5 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY2
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
INSIDE LENGTH4.719 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN
MOUNTING FACILITY LENGTH1.187 INCHES NOMINAL IN
MOUNTING METHODTHREADED STUD(S)
STYLE DESIGNATOREYE HOOK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/9,T5 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.312 INCHES IN
STOCK DIAMETER0.281 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
GH500F4Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
12224-A-3124-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 R1055-4?
R1055-4 is a HANDLE,BAIL.
What parts can replace R1055-4?
There are 2 known substitutes for R1055-4: GH500F4, 12224-A-3124-2. Substitute compatibility should be verified for your specific system.
What is the NSN for R1055-4?
R1055-4 is cataloged in the U.S. Government catalog under NSN 5340-01-247-0631. 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.