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A51L41902-13 — CLAMP,BLOCK,SECTION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A51L41902-13: CLAMP,BLOCK,SECTION.

The CLAMP,BLOCK,SECTION is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, block_height: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN, overall_width: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN, overall_length: 1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN, special_features: ONE THD HOLE 0.164-32 UNJC-2B, style_designator: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-043-6062, 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
A51L41902-13
NSN: 5340-01-043-6062
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
block_height0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
overall_width0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
overall_length1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
special_featuresONE THD HOLE 0.164-32 UNJC-2B
style_designatorRECTANGULAR
clamping_hole_diameter0.382 INCHES NOMINAL ALL HOLES IN
clamping_hole_quantity22
material_document_and_classificationQQ-A-250/4,T851 FED SPEC SINGLE MATERIAL RESPONSE
distance_from_end_to_first_clamping_hole_center0.313 INCHES NOMINAL IN
distance_from_end_to_first_mounting_hole_center0.688 INCHES NOMINAL IN
distance_from_center_of_mounting_hole_to_edge_along_the_width0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
NSN5340-01-043-6062
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A51L41902-13 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
•
CLAMPING HOLE QUANTITY: 22
•
DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER: 0.313 INCHES NOMINAL IN
•
BLOCK HEIGHT: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4,T851 FED SPEC SINGLE MATERIAL RESPONSE
•
CLAMPING HOLE DIAMETER: 0.382 INCHES NOMINAL ALL HOLES IN
TECHNICAL CHARACTERISTICS
CLAMPING HOLE QUANTITY22
DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER0.313 INCHES NOMINAL IN
BLOCK HEIGHT0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,T851 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
CLAMPING HOLE DIAMETER0.382 INCHES NOMINAL ALL HOLES IN
DISTANCE FROM CENTER OF MOUNTING HOLE TO EDGE ALONG THE WIDTH0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST MOUNTING HOLE CENTER0.688 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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51L41902-13?
A51L41902-13 is a CLAMP,BLOCK,SECTION.
What is the NSN for A51L41902-13?
A51L41902-13 is cataloged in the U.S. Government catalog under NSN 5340-01-043-6062. This indicates validated use in U.S. government and defense supply chains.
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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.