Catalog › Mechanical Power Transmission Equipment › FSC 3040 › 3040-00-451-6681

Shouldered Shaft P/N 2587650

In stock — 7 on our U.S. shelf

NSN 3040-00-451-6681 3040004516681 NIIN 004516681

SECO Parts has 7 in stock of NSN 3040-00-451-6681 — Shouldered Shaft — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Government catalog (FEDLOG) price: $2,867.76 per each — a public reference, not our price. We quote each request, usually the same business day, and surplus parts often quote below or above it.

Export-controlled item (DEMIL B) — U.S. domestic sale only. Quote only: an end-use statement is required.

Request a quote — end-use statement required

Quotes answered within one business day once the end-use statement is reviewed.

Certificate of Conformance on request
PO, GPC & major cards
$50 minimum order — smaller requests still get a quote
30-day returns · terms

FLIS item name: SHAFT,SHOULDERED
Federal supply class: FSC 3040 — Miscellaneous Power Transmission Equipment

Availability & condition

Condition	Code	Qty on shelf
New Surplus	NS	7
Total		7

Quantities are live from SECO's inventory system, not estimated.

Also known as: 3040-00-451-6681 004516681 2587650

Get a quote

Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.

Controlled item. Quote only — no online checkout. Your request must include the end user, the end use, and a U.S.-person certification; SECO reviews each request before quoting.

More to tell us? Need-by date, ship-to, your own RFQ document

Specifications

Second end spline major diameter: 3.2450–3.2500 in
First end distance from end to groove: 2.728–2.738 in
First end groove width: 0.1030–0.1080 in
Second end groove diameter: 3.0700–3.0820 in
Overall length: 24.891 in (nominal)
Second end distance from end to groove: 2.958 in (nominal)
End similarity: Not Identical
Second end groove width: 0.1030–0.1080 in
Second end spline quantity: 51
Largest step diameter: 4.058–4.063 in
Second end diameter: 3.3475–3.3484 in
Second end spline length: 1.868 in (nominal)
Second end spline minor diameter: 3.0510–3.0620 in
First end spline minor diameter: 3.0510–3.0620 in
First end spline major diameter: 3.2450–3.2500 in
Special features: 2 External Splines Both 64 Teeth,30 Deg PA,4.000 PD,16/32 Pitch,4.063-4.058 Major Dia,3.875-3.864 Minor Dia;Ends Counterbored and Grooved
Material: Steel
Material document and classification: Assn STD Single Material Response AST--A513 or Assn STD Single Material Response AST--A519
Surface finish: Microinches 63.0
First end diameter: 3.3475–3.3484 in
First end spline length: 1.538 in (nominal)
First end spline quantity: 51
First end groove diameter: 3.0700–3.0820 in
Step quantity: 9

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

2587650

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	J Not stocked, centrally procured — the government does not stock this item; it is procured only when a requisition arrives. SECO has 7 on the shelf
Unit of issue	EA each
Demilitarization code	B Export-controlled (USML) — U.S. domestic sale only
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered

FAQ

What is NSN 3040-00-451-6681?
NSN 3040-00-451-6681 (3040004516681) — Shouldered Shaft: SECO Parts has 7 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for shouldered shaft in federal supply class 3040 (Miscellaneous Power Transmission Equipment).

Is NSN 3040-00-451-6681 available?
SECO Parts has 7 in stock in Augusta, GA. This is a controlled item: it is sold by quote only with an end-use statement, to U.S. domestic customers.

How much does NSN 3040-00-451-6681 cost?
The government catalog (FEDLOG) lists NSN 3040-00-451-6681 at $2,867.76 per each. That is a public reference, not SECO's price: SECO quotes each request, usually the same business day, and surplus parts often quote below or above it.

What part numbers cross-reference to NSN 3040-00-451-6681?
Part numbers that cross-reference this NSN include 2587650. SECO can quote against any of them.