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BM21-10 — DOOR,ACCESS,UTILITY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BM21-10: DOOR,ACCESS,UTILITY.

The DOOR,ACCESS,UTILITY is a the manufacturer industrial component. Key specifications include width: 34.875 INCHES NOMINAL IN, length: 66.857 INCHES NOMINAL IN, material: ALUMINUM, securing_device_type: HINGE, peripheral_shape_style: RECTANGLE, NO HOLES, end_item_identification: USED ON AMMUNITION MAGAZINE ONBOARD 110 FT WPB CLASS B COAST GUARD VESSELS FT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-293-5639, 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
BM21-10
NSN: 5340-01-293-5639
FSC: 5340 — Hardware, Commercial
CAGE: 1GM18 — EACCO, INC. (USA)
SPECIFICATIONS
width34.875 INCHES NOMINAL IN
length66.857 INCHES NOMINAL IN
materialALUMINUM
securing_device_typeHINGE
peripheral_shape_styleRECTANGLE, NO HOLES
end_item_identificationUSED ON AMMUNITION MAGAZINE ONBOARD 110 FT WPB CLASS B COAST GUARD VESSELS FT
cross-sectional_shape_styleRECESS, SAME SHAPE AS THE PERIPHERY
NSN5340-01-293-5639
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BM21-10 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
•
LENGTH: 66.857 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECESS, SAME SHAPE AS THE PERIPHERY
•
SECURING DEVICE TYPE: HINGE
•
PERIPHERAL SHAPE STYLE: RECTANGLE, NO HOLES
•
WIDTH: 34.875 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM
TECHNICAL CHARACTERISTICS
LENGTH66.857 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECESS, SAME SHAPE AS THE PERIPHERY
SECURING DEVICE TYPEHINGE
SPECIAL FEATURES2 WATERTIGHT DOORS; FIRST DOOR, DOG LOCATION IN FRAME - 12, OPERATIONAL DIRECTION L.H.; SECOND DOOR, DOG LOCATION IN FRAME - 12, OPERATIONAL DIRECTION R.H.; DOG PINS, HINGE PINS, DOG ASSEMBLIES AND HASPS INCLUDED
PERIPHERAL SHAPE STYLERECTANGLE, NO HOLES
WIDTH34.875 INCHES NOMINAL IN
END ITEM IDENTIFICATIONUSED ON AMMUNITION MAGAZINE ONBOARD 110 FT WPB CLASS B COAST GUARD VESSELS FT
MATERIALALUMINUM
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BM21-10?
BM21-10 is a DOOR,ACCESS,UTILITY.
What is the NSN for BM21-10?
BM21-10 is cataloged in the U.S. Government catalog under NSN 5340-01-293-5639. This indicates validated use in U.S. government and defense supply chains.
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