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12561821-1 — HANDLE,BOW

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12561821-1: HANDLE,BOW.

The HANDLE,BOW is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6062 OR ALUMINUM ALLOY 2024 OVERALL, thread_class: 2A A, overall_length: 5.375 INCHES NOMINAL IN, handle_clearance: 2.630 INCHES NOMINAL IN, surface_treatment: CHROMATE OVERALL, nominal_thread_size: 0.375 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-362-4591, 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
12561821-1
NSN: 5340-01-362-4591
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6062 OR ALUMINUM ALLOY 2024 OVERALL
thread_class2A A
overall_length5.375 INCHES NOMINAL IN
handle_clearance2.630 INCHES NOMINAL IN
surface_treatmentCHROMATE OVERALL
nominal_thread_size0.375 INCHES IN
thread_series_designatorUNF
accommodated_shaft_diameter0.375 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
NSN5340-01-362-4591
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12561821-1 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/8,T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T651 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/8,T6511 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 3RD MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
HANDLE CLEARANCE: 2.630 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 0.375 INCHES NOMINAL IN
•
SURFACE TREATMENT: CHROMATE OVERALL
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8,T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T651 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/8,T6511 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 3RD MATERIAL RESPONSE OVERALL
OVERALL LENGTH5.375 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES IN
HANDLE CLEARANCE2.630 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER0.375 INCHES NOMINAL IN
SURFACE TREATMENTCHROMATE OVERALL
THREAD CLASS2A A
MATERIALALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6062 OR ALUMINUM ALLOY 2024 OVERALL
THREAD SERIES DESIGNATORUNF
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 1
12113-A-3724-16-MODIFIED O-RINGSame 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 12561821-1?
12561821-1 is a HANDLE,BOW.
What parts can replace 12561821-1?
There is 1 known substitute for 12561821-1: 12113-A-3724-16-MODIFIED O-RING. Substitute compatibility should be verified for your specific system.
What is the NSN for 12561821-1?
12561821-1 is cataloged in the U.S. Government catalog under NSN 5340-01-362-4591. This indicates validated use in U.S. government and defense supply chains.
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