NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5310 › 5310-01-312-1057
Spring Tension Washer P/N M12133/2-505
In stock — 1 on our U.S. shelfNSN 5310-01-312-1057 5310013121057 NIIN 013121057
SECO Parts has 1 in stock of NSN 5310-01-312-1057 — Spring Tension Washer — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Low-cost part: quoted by the line, $50 minimum per line; quantity pricing on request.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- 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
- WASHER,SPRING TENSION
- SECO description
- WASHER
- Federal supply class
- FSC 5310 — Nuts and Washers
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 1 |
| Total | 1 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5310-01-312-1057 013121057 M12133/2-505
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.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Hole diameter
- 0.505–0.540 in
- Outside diameter
- 0.965–1.000 in
- Overall height
- 0.068–0.082 in
- Material thickness
- 0.048–0.052 in
- Material
- Overall Steel Comp 302
- Material document and classification
- Overall MIL Spec Single Material Response -IL-S-5059 1 to 2H
- Surface treatment
- Overall Passivate
- Surface treatment document and classification
- Overall Assn STD Single Treatment Response Ast- A380
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
M12133/2-505
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 1 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.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5310-01-312-1057?
NSN 5310-01-312-1057 (5310013121057) — Spring Tension Washer: SECO Parts has 1 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for spring tension washer in federal supply class 5310 (Nuts and Washers).
Is NSN 5310-01-312-1057 available?
SECO Parts has 1 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5310-01-312-1057 cost?
NSN 5310-01-312-1057 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 5310-01-312-1057?
Part numbers that cross-reference this NSN include M12133/2-505. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names WASHER,SPRING TENSION. Same name is not the same part: check the part numbers.