PartsTable
Technical Data Sheet
Download PDF

6391051-1 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6391051-1: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 4.000 INCHES NOMINAL4.000 INCHES NOMINAL IN, length: 5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061, thickness: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN, special_features: TWO MOUNTING HOLES ARE COUNTERBORED 0.493 TO 0.509 INCHES AT 82 DEGREES. IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-519-8170, 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
6391051-1
NSN: 5340-01-519-8170
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
shapeRECTANGULAR
width4.000 INCHES NOMINAL4.000 INCHES NOMINAL IN
length5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061
thickness0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
special_featuresTWO MOUNTING HOLES ARE COUNTERBORED 0.493 TO 0.509 INCHES AT 82 DEGREES. IN
surface_treatmentANODIZE
mounting_hole_typeUNTHREADED
mounting_hole_diameter0.203 INCHES MINIMUM AND 0.209 INCHES MAXIMUM ALL HOLES IN
mounting_hole_quantity11
end_item_identificationTC RACK VALVE SUPPORT
material_document_and_classificationASTM-B290, T651 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-519-8170
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6391051-1 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: 11
•
LENGTH: 5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TY 2, CL 2, BLACK MIL SPEC 1ST TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-B290, T651 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.203 INCHES MINIMUM AND 0.209 INCHES MAXIMUM ALL HOLES IN
•
SHAPE: RECTANGULAR
•
SURFACE TREATMENT: ANODIZE
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY11
LENGTH5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TY 2, CL 2, BLACK MIL SPEC 1ST TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B290, T651 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.203 INCHES MINIMUM AND 0.209 INCHES MAXIMUM ALL HOLES IN
SHAPERECTANGULAR
SPECIAL FEATURESTWO MOUNTING HOLES ARE COUNTERBORED 0.493 TO 0.509 INCHES AT 82 DEGREES. IN
SURFACE TREATMENTANODIZE
WIDTH4.000 INCHES NOMINAL4.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONTC RACK VALVE SUPPORT
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
Ready to buy 6391051-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6391051-1?
6391051-1 is a PLATE,MOUNTING.
What is the NSN for 6391051-1?
6391051-1 is cataloged in the U.S. Government catalog under NSN 5340-01-519-8170. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6391051-1

✓ 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.