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H625-0312-4 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

H625-0312-4: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, special_features: HAS 12 BOLT HOLES;HOLES SIZE 0.654-0.665;HOLES EQUALLY SPACED AND CENTERED AT 8.000 DIAMETER, body_recess_depth: 2.102 INCHES NOMINAL IN, peripheral_diameter: 9.250 INCHES NOMINAL IN, body_recess_diameter: 5.375 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN, center_hole_diameter: 5.371 INCHES MINIMUM AND 5.373 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-500-8025, 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
H625-0312-4
NSN: 5330-01-500-8025
FSC: 5330 — Packing and Gasket Materials
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
special_featuresHAS 12 BOLT HOLES;HOLES SIZE 0.654-0.665;HOLES EQUALLY SPACED AND CENTERED AT 8.000 DIAMETER
body_recess_depth2.102 INCHES NOMINAL IN
peripheral_diameter9.250 INCHES NOMINAL IN
body_recess_diameter5.375 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN
center_hole_diameter5.371 INCHES MINIMUM AND 5.373 INCHES MAXIMUM IN
cross-sectional_height3.125 INCHES NOMINAL IN
end_item_identificationRETRACTABLE BOW PLANE DIVING RAM CYLINDER ZERO LK
cross-sectional_shape_styleFLANGE
flanged_body_outside_diameter6.468 INCHES MINIMUM AND 6.470 INCHES MAXIMUM IN
material_document_and_classificationASTM-8150 ALY C63000 ANNEALED ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyGLAND PACKING INNER
NSN5330-01-500-8025
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H625-0312-4 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
•
CROSS-SECTIONAL HEIGHT: 3.125 INCHES NOMINAL IN
•
BODY RECESS DIAMETER: 5.375 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-8150 ALY C63000 ANNEALED ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
•
FLANGED BODY OUTSIDE DIAMETER: 6.468 INCHES MINIMUM AND 6.470 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 9.250 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 5.371 INCHES MINIMUM AND 5.373 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT3.125 INCHES NOMINAL IN
BODY RECESS DIAMETER5.375 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-8150 ALY C63000 ANNEALED ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEFLANGE
FLANGED BODY OUTSIDE DIAMETER6.468 INCHES MINIMUM AND 6.470 INCHES MAXIMUM IN
PERIPHERAL DIAMETER9.250 INCHES NOMINAL IN
SPECIAL FEATURESHAS 12 BOLT HOLES;HOLES SIZE 0.654-0.665;HOLES EQUALLY SPACED AND CENTERED AT 8.000 DIAMETER
CENTER HOLE DIAMETER5.371 INCHES MINIMUM AND 5.373 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGLAND PACKING INNER
END ITEM IDENTIFICATIONRETRACTABLE BOW PLANE DIVING RAM CYLINDER ZERO LK
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
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 H625-0312-4?
H625-0312-4 is a RETAINER,PACKING.
What is the NSN for H625-0312-4?
H625-0312-4 is cataloged in the U.S. Government catalog under NSN 5330-01-500-8025. 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.