SSN637-505-21439 — BREECH,DOOR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

SSN637-505-21439: BREECH,DOOR.

The BREECH,DOOR is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 4540-01-220-2143, 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

SSN637-505-21439

NSN: 4540-01-220-2143
FSC: 4540 — Waste Disposal Equipment
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)

SPECIFICATIONS

criticality_code_justification	ZZZY
reference_number_differentiating_characteristics	QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN	4540-01-220-2143

COMPONENT DIAGRAM

KEY FEATURES

•

CRITICALITY CODE JUSTIFICATION: ZZZY

•

REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

TECHNICAL CHARACTERISTICS

CRITICALITY CODE JUSTIFICATION	ZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

OTHER ITEMS IN FSC 4540 — Waste Disposal Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4540-00-001-1243 4540-00-001-6053 4540-00-001-7002 4540-00-001-7832 4540-00-001-7839 4540-00-001-9407 4540-00-003-0152 4540-00-003-1491

SUBSTITUTES & CROSS-REFERENCES 5

77656-31X3 PIECE1L1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

SSN637-505-2143921 PIECE 1L1Reference document

Same NSN cross-reference

Reference document — Secondary reference

77656-31X3 PIECE1Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

SSN637-505-21439L1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

SSN637-505-2143921 PIECE 1Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is SSN637-505-21439?

SSN637-505-21439 is a BREECH,DOOR.

What parts can replace SSN637-505-21439?

There are 5 known substitutes for SSN637-505-21439: 77656-31X3 PIECE1L1, SSN637-505-2143921 PIECE 1L1, 77656-31X3 PIECE1 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for SSN637-505-21439?

SSN637-505-21439 is cataloged in the U.S. Government catalog under NSN 4540-01-220-2143. This indicates validated use in U.S. government and defense supply chains.

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