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Technical Data Sheet
PartsTable / COMPONENT / A3475
A3475 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 2.296 INCHES MINIMUM AND 2.664 INCHES MAXIMUM IN, material: RESIN SYNTHETIC AND NICKEL ALLOY TOP RING, inside_diameter: 1.000 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN, outside_diameter: 1.470 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, special_features: SCARF CUT 8 RING PACKING ASSEMBLY, end_item_identification: NUCLEAR REACTOR BOUNDRY AREA. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-953-2147, 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
A3475
NSN: 5307-00-953-2147
FSC: 5307
CAGE: 06275 — ALLEN R C INSTRUMENTS INC (USA)
SPECIFICATIONS
height2.296 INCHES MINIMUM AND 2.664 INCHES MAXIMUM IN
materialRESIN SYNTHETIC AND NICKEL ALLOY TOP RING
inside_diameter1.000 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
outside_diameter1.470 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
special_featuresSCARF CUT 8 RING PACKING ASSEMBLY
end_item_identificationNUCLEAR REACTOR BOUNDRY AREA
intermediate_ring_quantity6
cross-sectional_shape_styleSQUARE/RECTANGULAR INTERMEDIATE RING
part_name_assigned_by_controlling_agencySTUFFING BOX PACKING
NSN5307-00-953-2147
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A3475 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
10119588Interchangeable
interchangeable cross-reference
interchangeable
AS1895/7-100Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS1895Interchangeable
interchangeable cross-reference
interchangeable
32813-3.0IN PC10 NON-ASBESTOSInterchangeable
interchangeable cross-reference
interchangeable
A3475Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A3475?
A3475 is a PACKING ASSEMBLY.
What parts can replace A3475?
There are 5 known substitutes for A3475: 10119588, AS1895/7-100, SAE-AS1895 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A3475?
A3475 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-953-2147. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026