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552-A — SEAL,METALLIC,AIRCRAFT GAS TURBI

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

552-A: SEAL,METALLIC,AIRCRAFT GAS TURBI.

SEAL,METALLIC,AIRCRAFT GAS TURBI. Key specifications include hoist: 2.750 INCHES IN, terminal_type: TAB, SOLDER LUG, fiber_material: RAYON, special_features: 2 3/4 INCHES BY 3 FT IN, style_designator: SWALLOW TAILED, features_provided: ACTUATOR KNOB. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0327, 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
MRO→ MRO_GENERAL→ 552-A
NSN: 3110-00-100-0327
NIINs: 001000327, 002359764, 003987003, 006344892, 010881780, 015509081, 015510583, 015510805, 015510832, 015510855, 015510860, 015510864, 015511120, 015511126, 015521163, 015521169, 015521738, 015521739, 015521742, 015580898, 015616218, 015616225, 015620016, 015620129, 015620139, 015645816, 015645855, 015646168, 015646206
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
hoist2.750 INCHES IN
terminal_typeTAB, SOLDER LUG
fiber_materialRAYON
special_features2 3/4 INCHES BY 3 FT IN
style_designatorSWALLOW TAILED
features_providedACTUATOR KNOB
design_designationDOMINICAN CAMPAIGN
procurement_group_code34446
end_item_identificationPUMP,CENTRIFUGAL
contact_switching_actionBREAKS BEFORE MAKES SINGLE SECTION IN-LINE
individual_section_quantity1
nondefinitive_spec/std_dataII TYPE AND 2 CLASS AND 2 SIZE
NSN3110-00-100-0327
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 552-A · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 9
258802Reference document
Same NSN cross-reference
Reference document — Secondary reference
457221Reference document
Same NSN cross-reference
Reference document — Secondary reference
X552AReference document
Same NSN cross-reference
Reference document — Secondary reference
19270HReference document
Same NSN cross-reference
Reference document — Secondary reference
3028271Reference document
Same NSN cross-reference
Reference document — Secondary reference
4NFG0142Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 552-A?
552-A is a SEAL,METALLIC,AIRCRAFT GAS TURBI. It is classified as a MRO (MRO_GENERAL).
What parts can replace 552-A?
There are 9 known substitutes for 552-A: 258802, 457221, X552A and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 552-A?
552-A is cataloged in the U.S. Government catalog under NSN 3110-00-100-0327. 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.