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1344M31P12 — CLAMP,BLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1344M31P12: CLAMP,BLOCK.

The CLAMP,BLOCK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 356.0, block_height: 0.517 INCHES NOMINAL0.517 INCHES NOMINAL IN, overall_width: 0.480 INCHES MINIMUM AND 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM0.520 INCHES MAXIMUM IN, overall_height: 1.034 INCHES NOMINAL1.034 INCHES NOMINAL IN, overall_length: 1.300 INCHES MINIMUM AND 1.300 INCHES MINIMUM AND 1.340 INCHES MAXIMUM1.340 INCHES MAXIMUM IN, style_designator: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-338-2898, 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
1344M31P12
NSN: 5340-01-338-2898
FSC: 5340 — Hardware, Commercial
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 356.0
block_height0.517 INCHES NOMINAL0.517 INCHES NOMINAL IN
overall_width0.480 INCHES MINIMUM AND 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM0.520 INCHES MAXIMUM IN
overall_height1.034 INCHES NOMINAL1.034 INCHES NOMINAL IN
overall_length1.300 INCHES MINIMUM AND 1.300 INCHES MINIMUM AND 1.340 INCHES MAXIMUM1.340 INCHES MAXIMUM IN
style_designatorRECTANGULAR
mounting_facilityUNTHREADED HOLE(S)UNTHREADED HOLE(S)
surface_treatmentANODIZE
clamping_hole_diameter0.794 INCHES NOMINAL SINGLE HOLE IN
clamping_hole_quantity1
mounting_hole_diameter0.229 INCHES MINIMUM AND 0.229 INCHES MINIMUM AND 0.241 INCHES MAXIMUM0.241 INCHES MAXIMUM IN
mounting_hole_quantity22
NSN5340-01-338-2898
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1344M31P12 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
•
MOUNTING HOLE QUANTITY: 22
•
CLAMPING HOLE QUANTITY: 1
•
DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER: 0.880 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A
•
BLOCK HEIGHT: 0.517 INCHES NOMINAL0.517 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4218 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY22
OVERALL HEIGHT1.034 INCHES NOMINAL1.034 INCHES NOMINAL IN
CLAMPING HOLE QUANTITY1
DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER0.880 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A
BLOCK HEIGHT0.517 INCHES NOMINAL0.517 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4218 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.229 INCHES MINIMUM AND 0.229 INCHES MINIMUM AND 0.241 INCHES MAXIMUM0.241 INCHES MAXIMUM IN
OVERALL LENGTH1.300 INCHES MINIMUM AND 1.300 INCHES MINIMUM AND 1.340 INCHES MAXIMUM1.340 INCHES MAXIMUM 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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1344M31P12?
1344M31P12 is a CLAMP,BLOCK.
What is the NSN for 1344M31P12?
1344M31P12 is cataloged in the U.S. Government catalog under NSN 5340-01-338-2898. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.