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2121343 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2121343: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630, hole_diameter: 0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, body_thickness: 0.125 INCHES NOMINAL IN, surface_treatment: PASSIVATE, securing_device_type: SPECIAL, cross-sectional_shape_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-253-5901, 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
2121343
NSN: 5340-01-253-5901
FSC: 5340 — Hardware, Commercial
CAGE: 44114 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialSTEEL COMP 630
hole_diameter0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
body_thickness0.125 INCHES NOMINAL IN
surface_treatmentPASSIVATE
securing_device_typeSPECIAL
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
surface_treatment_document_and_classificationQQ-P-35,TYPE 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-253-5901
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2121343 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: QQ-P-35,TYPE 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL COMP 630
•
HOLE DIAMETER: 0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
BODY THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 630
HOLE DIAMETER0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
BODY THICKNESS0.125 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 2121343?
2121343 is a COVER,ACCESS.
What is the NSN for 2121343?
2121343 is cataloged in the U.S. Government catalog under NSN 5340-01-253-5901. This indicates validated use in U.S. government and defense supply chains.
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