Sleeve Bushing P/N NAS77-4-025

Specifications

Surface finish

Intermediate Layer Microinches 100.0

Flange outside diameter

0.4900–0.5100 in

Material

Overall Steel Comp 4130 or Steel Comp 8630

Material document and classification

Overall MIL Spec 1ST Material Response -IL-S-6758 or MIL Spec 2ND Material Response -IL-S-6050

Surface treatment

Overall Cadmium

Surface treatment document and classification

Overall Fed Spec Single Treatment Response QQ--416,TY 2,CL 3

Corner shape

Inside Right Corner Chamfered

Nondefinitive spec/std data

Type 1 and Grade 1

Special features

ID and OD to BE Parallel and Concentric Within 0.0030 Tir

Corner shape

Left Flange Outside Right Corner Square

Flange width

0.0570–0.0620 in

Corner shape

Outside Left Corner Square

Corner shape

Outside Right Corner Square

Specification/standard data

Professional/industrial Association Standard 80205-NAS77

Overall length

0.3020–0.3170 in

Body inside diameter

0.2500–0.2515 in

Corner shape

Left Flange Body Corner Undercut

Corner shape

Inside Left Corner Chamfered

Body outside diameter

0.3756–0.3761 in

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

Cross-reference part numbers

NAS77-4-025 NAS77 NAS77-4-25 MIL-B-5687

Also referenced as

10107658

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

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	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 4 on the shelf
Unit of issue	EA each
Demilitarization code	A Demilitarization not required — non-munitions-list item
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.

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FAQ

What is NSN 3120-00-661-4135?
NSN 3120-00-661-4135 (3120006614135) — Sleeve Bushing: SECO Parts has 4 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for sleeve bushing in federal supply class 3120 (Bearings, Plain, Unmounted).

Is NSN 3120-00-661-4135 available?
SECO Parts has 4 in stock in Augusta, GA — order or request a quote below.

How much does NSN 3120-00-661-4135 cost?
NSN 3120-00-661-4135 is a low-cost part, so SECO quotes it by the line rather than by the piece: there is a $50 minimum per line, and quantity pricing on request — usually answered the same business day.

What part numbers cross-reference to NSN 3120-00-661-4135?
Part numbers that cross-reference this NSN include NAS77-4-025, NAS77, NAS77-4-25, MIL-B-5687. It is also referenced by older, superseded or advisory numbers: 10107658. SECO can quote against any of them.