NSN & defense logistics

FSC cluster reference — Federal Supply Classification doorways

AI-ready answer

Short answer

FSC (Federal Supply Classification) is the 4-digit family identifier inside an NSN. PartsPerk publishes browsable FSC doorways for the high-demand aviation clusters.

Key facts

FSC = 4-digit Federal Supply Classification family
Linked to /fsc (hub) and /fsc/{4-digit-code} (entity)

Best for

Buyers exploring an FSC family before identifying a specific NSN
Procurement teams pulling RFQ candidates by FSC cluster

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On-device model warming · still 100% local

Recommended next step

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Subcategories

Fasteners FSC cluster
FSC 5305, 5306, 5310, 5320 — bolts, nuts, washers, rivets.
FSC 5305, 5306, 5310, 5320
Seals & gaskets FSC cluster
FSC 5330, 5331 — packing, gaskets, O-rings.
FSC 5330, 5331
Electrical FSC cluster
FSC 5925, 5935, 5940 — circuit breakers, connectors, terminals.
FSC 5925, 5935, 5940

Related Federal Supply Classes

Cross-links derived from the entity graph — FSC, ATA, manufacturer, vendor, goals, and capabilities.

Open Part Command Console →
workflow · score 95
Browse parts categories →
taxonomy group · score 90
FSC 5305 →
fsc · score 80
FSC 5306 →
fsc · score 80
FSC 5310 →
fsc · score 80
FSC 5320 →
fsc · score 80
FSC 5330 →
fsc · score 80
FSC 5331 →
fsc · score 80
FSC 5925 →
fsc · score 80
FSC 5935 →
fsc · score 80
FSC 5940 →
fsc · score 80
MRO consumables →
taxonomy category · score 76

PartsPerk is independent. Manufacturer names, NSN codes, CAGE codes, and part numbers identify sourcing context only — never affiliation, authorization, fit, airworthiness, or live inventory.

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Short answer

FSC (Federal Supply Classification) is the 4-digit family identifier inside an NSN. PartsPerk publishes browsable FSC doorways for the high-demand aviation clusters.